125415402 has 24 divisors (see below), whose sum is σ = 291783456. Its totient is φ = 35832888.

The previous prime is 125415379. The next prime is 125415431. The reversal of 125415402 is 204514521.

It is a super-3 number, since 3×125415402³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 212998 + ... + 213585.

It is an arithmetic number, because the mean of its divisors is an integer number (12157644).

Almost surely, 2^125415402 is an apocalyptic number.

125415402 is an abundant number, since it is smaller than the sum of its proper divisors (166368054).

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

125415402 is a wasteful number, since it uses less digits than its factorization.

125415402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426602 (or 426595 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 125415402 is about 11198.9018211609. The cubic root of 125415402 is about 500.5532569211.

Adding to 125415402 its reverse (204514521), we get a palindrome (329929923).

The spelling of 125415402 in words is "one hundred twenty-five million, four hundred fifteen thousand, four hundred two".