125312254 has 16 divisors (see below), whose sum is σ = 190146528. Its totient is φ = 61933312.

The previous prime is 125312251. The next prime is 125312309. The reversal of 125312254 is 452213521.

It is a super-2 number, since 2×125312254² = 31406322005121032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125312251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145794 + ... + 146650.

It is an arithmetic number, because the mean of its divisors is an integer number (11884158).

Almost surely, 2^125312254 is an apocalyptic number.

125312254 is a deficient number, since it is larger than the sum of its proper divisors (64834274).

125312254 is a wasteful number, since it uses less digits than its factorization.

125312254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619.

The product of its digits is 2400, while the sum is 25.

The square root of 125312254 is about 11194.2956008853. The cubic root of 125312254 is about 500.4159924712.

Adding to 125312254 its reverse (452213521), we get a palindrome (577525775).

The spelling of 125312254 in words is "one hundred twenty-five million, three hundred twelve thousand, two hundred fifty-four".