145334021402 has 8 divisors (see below), whose sum is σ = 218003992500. Its totient is φ = 72666023904.

The previous prime is 145334021317. The next prime is 145334021419. The reversal of 145334021402 is 204120433541.

It can be written as a sum of positive squares in 2 ways, for example, as 113056665121 + 32277356281 = 336239^2 + 179659^2 .

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

It is a super-2 number, since 2×145334021402² (a number of 23 digits) contains 22 as substring.

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, 293027 + ... + 613622.

Almost surely, 2^145334021402 is an apocalyptic number.

145334021402 is a deficient number, since it is larger than the sum of its proper divisors (72669971098).

145334021402 is an equidigital number, since it uses as much as digits as its factorization.

145334021402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986800.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 145334021402 its reverse (204120433541), we get a palindrome (349454454943).

The spelling of 145334021402 in words is "one hundred forty-five billion, three hundred thirty-four million, twenty-one thousand, four hundred two".