125541890 has 8 divisors (see below), whose sum is σ = 225975420. Its totient is φ = 50216752.

The previous prime is 125541883. The next prime is 125541901. The reversal of 125541890 is 98145521.

It can be written as a sum of positive squares in 2 ways, for example, as 120582361 + 4959529 = 10981^2 + 2227^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×125541890² = 31521532289544200, 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 125541890.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6277085 + ... + 6277104.

Almost surely, 2^125541890 is an apocalyptic number.

125541890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125541890 is a deficient number, since it is larger than the sum of its proper divisors (100433530).

125541890 is a wasteful number, since it uses less digits than its factorization.

125541890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12554196.

The product of its (nonzero) digits is 14400, while the sum is 35.

The square root of 125541890 is about 11204.5477374145. The cubic root of 125541890 is about 500.7214784370.

The spelling of 125541890 in words is "one hundred twenty-five million, five hundred forty-one thousand, eight hundred ninety".