125046431 has 2 divisors, whose sum is σ = 125046432. Its totient is φ = 125046430.

The previous prime is 125046409. The next prime is 125046457. The reversal of 125046431 is 134640521.

It is an a-pointer prime, because the next prime (125046457) can be obtained adding 125046431 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125046431 - 2¹⁸ = 124784287 is a prime.

It is a super-2 number, since 2×125046431² = 31273219811675522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125046431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125046631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62523215 + 62523216.

It is an arithmetic number, because the mean of its divisors is an integer number (62523216).

Almost surely, 2^125046431 is an apocalyptic number.

125046431 is a deficient number, since it is larger than the sum of its proper divisors (1).

125046431 is an equidigital number, since it uses as much as digits as its factorization.

125046431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 125046431 is about 11182.4161521560. The cubic root of 125046431 is about 500.0619003364.

Adding to 125046431 its reverse (134640521), we get a palindrome (259686952).

The spelling of 125046431 in words is "one hundred twenty-five million, forty-six thousand, four hundred thirty-one".