45243013402 has 16 divisors (see below), whose sum is σ = 69722635752. Its totient is φ = 22002554880.

The previous prime is 45243013399. The next prime is 45243013423. The reversal of 45243013402 is 20431034254.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 38741655241 + 6501358161 = 196829^2 + 80631^2 .

It is a super-2 number, since 2×45243013402² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115002 + ... + 322042.

Almost surely, 2^45243013402 is an apocalyptic number.

45243013402 is a deficient number, since it is larger than the sum of its proper divisors (24479622350).

45243013402 is a wasteful number, since it uses less digits than its factorization.

45243013402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210033.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 45243013402 its reverse (20431034254), we get a palindrome (65674047656).

The spelling of 45243013402 in words is "forty-five billion, two hundred forty-three million, thirteen thousand, four hundred two".