125420434354 has 4 divisors (see below), whose sum is σ = 188130651534. Its totient is φ = 62710217176.

The previous prime is 125420434309. The next prime is 125420434453. The reversal of 125420434354 is 453434024521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 97171228729 + 28249205625 = 311723^2 + 168075^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31355108587 + ... + 31355108590.

Almost surely, 2^125420434354 is an apocalyptic number.

125420434354 is a deficient number, since it is larger than the sum of its proper divisors (62710217180).

125420434354 is an equidigital number, since it uses as much as digits as its factorization.

125420434354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62710217179.

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 125420434354 its reverse (453434024521), we get a palindrome (578854458875).

The spelling of 125420434354 in words is "one hundred twenty-five billion, four hundred twenty million, four hundred thirty-four thousand, three hundred fifty-four".