145402405331 has 8 divisors (see below), whose sum is σ = 145491960960. Its totient is φ = 145312884288.

The previous prime is 145402405319. The next prime is 145402405349. The reversal of 145402405331 is 133504204541.

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

It is a cyclic number.

It is not a de Polignac number, because 145402405331 - 2²⁶ = 145335296467 is a prime.

It is a super-2 number, since 2×145402405331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145402405361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15399710 + ... + 15409148.

It is an arithmetic number, because the mean of its divisors is an integer number (18186495120).

Almost surely, 2^145402405331 is an apocalyptic number.

145402405331 is a deficient number, since it is larger than the sum of its proper divisors (89555629).

145402405331 is an equidigital number, since it uses as much as digits as its factorization.

145402405331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17293.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 145402405331 its reverse (133504204541), we get a palindrome (278906609872).

The spelling of 145402405331 in words is "one hundred forty-five billion, four hundred two million, four hundred five thousand, three hundred thirty-one".