125040002 has 4 divisors (see below), whose sum is σ = 187560006. Its totient is φ = 62520000.

The previous prime is 125039989. The next prime is 125040011. The reversal of 125040002 is 200040521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200040521 = 29 ⋅6897949.

It can be written as a sum of positive squares in only one way, i.e., 65302561 + 59737441 = 8081^2 + 7729^2 .

It is a super-3 number, since 3×125040002³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31259999 + ... + 31260002.

Almost surely, 2^125040002 is an apocalyptic number.

125040002 is a deficient number, since it is larger than the sum of its proper divisors (62520004).

125040002 is an equidigital number, since it uses as much as digits as its factorization.

125040002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62520003.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 125040002 is about 11182.1286882239. The cubic root of 125040002 is about 500.0533303116.

Adding to 125040002 its reverse (200040521), we get a palindrome (325080523).

The spelling of 125040002 in words is "one hundred twenty-five million, forty thousand, two".