140220534 has 8 divisors (see below), whose sum is σ = 280441080. Its totient is φ = 46740176.

The previous prime is 140220523. The next prime is 140220547. The reversal of 140220534 is 435022041.

140220534 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

140220534 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 140220534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11685039 + ... + 11685050.

It is an arithmetic number, because the mean of its divisors is an integer number (35055135).

Almost surely, 2^140220534 is an apocalyptic number.

140220534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140220534 is a wasteful number, since it uses less digits than its factorization.

140220534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23370094.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 140220534 is about 11841.4751614822. The cubic root of 140220534 is about 519.5219151228.

Adding to 140220534 its reverse (435022041), we get a palindrome (575242575).

The spelling of 140220534 in words is "one hundred forty million, two hundred twenty thousand, five hundred thirty-four".