140762991 has 4 divisors (see below), whose sum is σ = 187683992. Its totient is φ = 93841992.

The previous prime is 140762983. The next prime is 140763017. The reversal of 140762991 is 199267041.

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

It is not a de Polignac number, because 140762991 - 2³ = 140762983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140762981) 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, 23460496 + ... + 23460501.

It is an arithmetic number, because the mean of its divisors is an integer number (46920998).

Almost surely, 2^140762991 is an apocalyptic number.

140762991 is a deficient number, since it is larger than the sum of its proper divisors (46921001).

140762991 is an equidigital number, since it uses as much as digits as its factorization.

140762991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46921000.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 140762991 is about 11864.3580104446. The cubic root of 140762991 is about 520.1909936963.

The spelling of 140762991 in words is "one hundred forty million, seven hundred sixty-two thousand, nine hundred ninety-one".