140897992 has 16 divisors (see below), whose sum is σ = 265350960. Its totient is φ = 70137744.

The previous prime is 140897951. The next prime is 140898041. The reversal of 140897992 is 299798041.

140897992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36978 + ... + 40609.

It is an arithmetic number, because the mean of its divisors is an integer number (16584435).

Almost surely, 2^140897992 is an apocalyptic number.

It is an amenable number.

140897992 is a deficient number, since it is larger than the sum of its proper divisors (124452968).

140897992 is a wasteful number, since it uses less digits than its factorization.

140897992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77820 (or 77816 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 140897992 is about 11870.0459982260. The cubic root of 140897992 is about 520.3572397274.

Adding to 140897992 its sum of digits (49), we get a palindrome (140898041).

The spelling of 140897992 in words is "one hundred forty million, eight hundred ninety-seven thousand, nine hundred ninety-two".