140129400 has 48 divisors (see below), whose sum is σ = 434403000. Its totient is φ = 37367680.

The previous prime is 140129377. The next prime is 140129411. The reversal of 140129400 is 4921041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116175 + ... + 117374.

Almost surely, 2^140129400 is an apocalyptic number.

140129400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140129400 is an abundant number, since it is smaller than the sum of its proper divisors (294273600).

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

140129400 is a wasteful number, since it uses less digits than its factorization.

140129400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233568 (or 233559 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 140129400 is about 11837.6264512781. The cubic root of 140129400 is about 519.4093391925.

The spelling of 140129400 in words is "one hundred forty million, one hundred twenty-nine thousand, four hundred".