140649902 has 4 divisors (see below), whose sum is σ = 210974856. Its totient is φ = 70324950.

The previous prime is 140649871. The next prime is 140649911. The reversal of 140649902 is 209946041.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35162474 + ... + 35162477.

It is an arithmetic number, because the mean of its divisors is an integer number (52743714).

Almost surely, 2^140649902 is an apocalyptic number.

140649902 is a deficient number, since it is larger than the sum of its proper divisors (70324954).

140649902 is an equidigital number, since it uses as much as digits as its factorization.

140649902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70324953.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 140649902 is about 11859.5911396641. The cubic root of 140649902 is about 520.0516492090.

The spelling of 140649902 in words is "one hundred forty million, six hundred forty-nine thousand, nine hundred two".