140476731 has 16 divisors (see below), whose sum is σ = 188969088. Its totient is φ = 92822400.

The previous prime is 140476723. The next prime is 140476751. The reversal of 140476731 is 137674041.

140476731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 140476731 - 2³ = 140476723 is a prime.

It is a super-2 number, since 2×140476731² = 39467423904892722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140476692 and 140476701.

It is not an unprimeable number, because it can be changed into a prime (140476751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239020 + ... + 239606.

It is an arithmetic number, because the mean of its divisors is an integer number (11810568).

Almost surely, 2^140476731 is an apocalyptic number.

140476731 is a deficient number, since it is larger than the sum of its proper divisors (48492357).

140476731 is a wasteful number, since it uses less digits than its factorization.

140476731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 140476731 is about 11852.2880069630. The cubic root of 140476731 is about 519.8381288569.

The spelling of 140476731 in words is "one hundred forty million, four hundred seventy-six thousand, seven hundred thirty-one".