151242500 has 30 divisors (see below), whose sum is σ = 330742566. Its totient is φ = 60496000.

The previous prime is 151242493. The next prime is 151242541. The reversal of 151242500 is 5242151.

151242500 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 24049216 + 127193284 = 4904^2 + 11278^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 27749 + ... + 32748.

Almost surely, 2^151242500 is an apocalyptic number.

151242500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151242500 is an abundant number, since it is smaller than the sum of its proper divisors (179500066).

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

151242500 is an equidigital number, since it uses as much as digits as its factorization.

151242500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60521 (or 60504 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 151242500 is about 12298.0689541082. The cubic root of 151242500 is about 532.7923116077.

Adding to 151242500 its reverse (5242151), we get a palindrome (156484651).

The spelling of 151242500 in words is "one hundred fifty-one million, two hundred forty-two thousand, five hundred".