140687954 has 16 divisors (see below), whose sum is σ = 243759456. Its totient is φ = 60187200.

The previous prime is 140687947. The next prime is 140687977. The reversal of 140687954 is 459786041.

It is a super-2 number, since 2×140687954² = 39586200801412232, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187712 + ... + 188459.

It is an arithmetic number, because the mean of its divisors is an integer number (15234966).

Almost surely, 2^140687954 is an apocalyptic number.

140687954 is a deficient number, since it is larger than the sum of its proper divisors (103071502).

140687954 is a wasteful number, since it uses less digits than its factorization.

140687954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376201.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 140687954 is about 11861.1953023294. The cubic root of 140687954 is about 520.0985439473.

It can be divided in two parts, 14068 and 7954, that added together give a palindrome (22022).

The spelling of 140687954 in words is "one hundred forty million, six hundred eighty-seven thousand, nine hundred fifty-four".