139741954 has 32 divisors (see below), whose sum is σ = 233985024. Its totient is φ = 62060880.

The previous prime is 139741919. The next prime is 139741957. The reversal of 139741954 is 459147931.

It is a self number, because there is not a number n which added to its sum of digits gives 139741954.

It is not an unprimeable number, because it can be changed into a prime (139741957) 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, 187707 + ... + 188449.

It is an arithmetic number, because the mean of its divisors is an integer number (7312032).

Almost surely, 2^139741954 is an apocalyptic number.

139741954 is a deficient number, since it is larger than the sum of its proper divisors (94243070).

139741954 is a wasteful number, since it uses less digits than its factorization.

139741954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942.

The product of its digits is 136080, while the sum is 43.

The square root of 139741954 is about 11821.2501030982. The cubic root of 139741954 is about 518.9301896121.

The spelling of 139741954 in words is "one hundred thirty-nine million, seven hundred forty-one thousand, nine hundred fifty-four".