125554140 has 36 divisors (see below), whose sum is σ = 380848104. Its totient is φ = 33481056.

The previous prime is 125554139. The next prime is 125554141. The reversal of 125554140 is 41455521.

It is an interprime number because it is at equal distance from previous prime (125554139) and next prime (125554141).

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×125554140² = 31527684142279200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125554141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 348582 + ... + 348941.

It is an arithmetic number, because the mean of its divisors is an integer number (10579114).

Almost surely, 2^125554140 is an apocalyptic number.

125554140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125554140 is an abundant number, since it is smaller than the sum of its proper divisors (255293964).

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

125554140 is a wasteful number, since it uses less digits than its factorization.

125554140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697538 (or 697533 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 125554140 is about 11205.0943771126. The cubic root of 125554140 is about 500.7377642059.

The spelling of 125554140 in words is "one hundred twenty-five million, five hundred fifty-four thousand, one hundred forty".