125533690 has 16 divisors (see below), whose sum is σ = 226233000. Its totient is φ = 50152960.

The previous prime is 125533673. The next prime is 125533691. The reversal of 125533690 is 96335521.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 94653441 + 30880249 = 9729^2 + 5557^2 .

It is a super-2 number, since 2×125533690² = 31517414650032200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (125533691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1686 + ... + 15934.

Almost surely, 2^125533690 is an apocalyptic number.

125533690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125533690 is a deficient number, since it is larger than the sum of its proper divisors (100699310).

125533690 is a wasteful number, since it uses less digits than its factorization.

125533690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15137.

The product of its (nonzero) digits is 24300, while the sum is 34.

The square root of 125533690 is about 11204.1818085927. The cubic root of 125533690 is about 500.7105763508.

The spelling of 125533690 in words is "one hundred twenty-five million, five hundred thirty-three thousand, six hundred ninety".