125849690 has 16 divisors (see below), whose sum is σ = 227370240. Its totient is φ = 50153040.

The previous prime is 125849681. The next prime is 125849693. The reversal of 125849690 is 96948521.

It is a super-2 number, since 2×125849690² = 31676288946192200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (125849693) 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, 20510 + ... + 25929.

It is an arithmetic number, because the mean of its divisors is an integer number (14210640).

Almost surely, 2^125849690 is an apocalyptic number.

125849690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125849690 is a deficient number, since it is larger than the sum of its proper divisors (101520550).

125849690 is a wasteful number, since it uses less digits than its factorization.

125849690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46717.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 125849690 is about 11218.2748228059. The cubic root of 125849690 is about 501.1303626349.

The spelling of 125849690 in words is "one hundred twenty-five million, eight hundred forty-nine thousand, six hundred ninety".