125902451 has 4 divisors (see below), whose sum is σ = 127419432. Its totient is φ = 124385472.

The previous prime is 125902429. The next prime is 125902457. The reversal of 125902451 is 154209521.

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

It is a cyclic number.

It is not a de Polignac number, because 125902451 - 2¹⁴ = 125886067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125902457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 758366 + ... + 758531.

It is an arithmetic number, because the mean of its divisors is an integer number (31854858).

Almost surely, 2^125902451 is an apocalyptic number.

125902451 is a deficient number, since it is larger than the sum of its proper divisors (1516981).

125902451 is an equidigital number, since it uses as much as digits as its factorization.

125902451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516980.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 125902451 is about 11220.6261411741. The cubic root of 125902451 is about 501.2003838510.

The spelling of 125902451 in words is "one hundred twenty-five million, nine hundred two thousand, four hundred fifty-one".