125512534 has 16 divisors (see below), whose sum is σ = 216612000. Its totient is φ = 53429184.

The previous prime is 125512511. The next prime is 125512553. The reversal of 125512534 is 435215521.

It is a super-2 number, since 2×125512534² = 31506792382202312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 27999 + ... + 32170.

It is an arithmetic number, because the mean of its divisors is an integer number (13538250).

Almost surely, 2^125512534 is an apocalyptic number.

125512534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

125512534 is a deficient number, since it is larger than the sum of its proper divisors (91099466).

125512534 is a wasteful number, since it uses less digits than its factorization.

125512534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60327.

The product of its digits is 6000, while the sum is 28.

The square root of 125512534 is about 11203.2376570347. The cubic root of 125512534 is about 500.6824467757.

The spelling of 125512534 in words is "one hundred twenty-five million, five hundred twelve thousand, five hundred thirty-four".