125290280 has 16 divisors (see below), whose sum is σ = 281903220. Its totient is φ = 50116096.

The previous prime is 125290273. The next prime is 125290283. The reversal of 125290280 is 82092521.

It can be written as a sum of positive squares in 2 ways, for example, as 111555844 + 13734436 = 10562^2 + 3706^2 .

It is not an unprimeable number, because it can be changed into a prime (125290283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1566089 + ... + 1566168.

Almost surely, 2^125290280 is an apocalyptic number.

125290280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125290280 is an abundant number, since it is smaller than the sum of its proper divisors (156612940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125290280 is a wasteful number, since it uses less digits than its factorization.

125290280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3132268 (or 3132264 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 125290280 is about 11193.3140758222. The cubic root of 125290280 is about 500.3867407860.

The spelling of 125290280 in words is "one hundred twenty-five million, two hundred ninety thousand, two hundred eighty".