125145340 has 12 divisors (see below), whose sum is σ = 262805256. Its totient is φ = 50058128.

The previous prime is 125145299. The next prime is 125145341. The reversal of 125145340 is 43541521.

It is a happy number.

It is a super-2 number, since 2×125145340² = 31322712247431200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125145341) 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, 3128614 + ... + 3128653.

It is an arithmetic number, because the mean of its divisors is an integer number (21900438).

Almost surely, 2^125145340 is an apocalyptic number.

125145340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125145340 is an abundant number, since it is smaller than the sum of its proper divisors (137659916).

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

125145340 is a wasteful number, since it uses less digits than its factorization.

125145340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6257276 (or 6257274 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 125145340 is about 11186.8378016310. The cubic root of 125145340 is about 500.1937116086.

Adding to 125145340 its reverse (43541521), we get a palindrome (168686861).

The spelling of 125145340 in words is "one hundred twenty-five million, one hundred forty-five thousand, three hundred forty".