140374431 has 16 divisors (see below), whose sum is σ = 208572000. Its totient is φ = 93308544.

The previous prime is 140374427. The next prime is 140374433. The reversal of 140374431 is 134473041.

It is not a de Polignac number, because 140374431 - 2² = 140374427 is a prime.

It is a super-2 number, since 2×140374431² = 39409961757147522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 140374395 and 140374404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140374433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1975 + ... + 16871.

It is an arithmetic number, because the mean of its divisors is an integer number (13035750).

Almost surely, 2^140374431 is an apocalyptic number.

140374431 is a deficient number, since it is larger than the sum of its proper divisors (68197569).

140374431 is a wasteful number, since it uses less digits than its factorization.

140374431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15255 (or 15249 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 140374431 is about 11847.9715985480. The cubic root of 140374431 is about 519.7119101955.

The spelling of 140374431 in words is "one hundred forty million, three hundred seventy-four thousand, four hundred thirty-one".