140997870 has 48 divisors (see below), whose sum is σ = 394797312. Its totient is φ = 34706880.

The previous prime is 140997869. The next prime is 140997937. The reversal of 140997870 is 78799041.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59086 + ... + 61425.

It is an arithmetic number, because the mean of its divisors is an integer number (8224944).

Almost surely, 2^140997870 is an apocalyptic number.

140997870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140997870 is an abundant number, since it is smaller than the sum of its proper divisors (253799442).

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

140997870 is a wasteful number, since it uses less digits than its factorization.

140997870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120537 (or 120534 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 140997870 is about 11874.2523975196. The cubic root of 140997870 is about 520.4801654555.

The spelling of 140997870 in words is "one hundred forty million, nine hundred ninety-seven thousand, eight hundred seventy".