139670954 has 4 divisors (see below), whose sum is σ = 209506434. Its totient is φ = 69835476.

The previous prime is 139670941. The next prime is 139670959. The reversal of 139670954 is 459076931.

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

It can be written as a sum of positive squares in only one way, i.e., 139594225 + 76729 = 11815^2 + 277^2 .

It is not an unprimeable number, because it can be changed into a prime (139670959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34917737 + ... + 34917740.

Almost surely, 2^139670954 is an apocalyptic number.

139670954 is a deficient number, since it is larger than the sum of its proper divisors (69835480).

139670954 is an equidigital number, since it uses as much as digits as its factorization.

139670954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69835479.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 139670954 is about 11818.2466550669. The cubic root of 139670954 is about 518.8422888205.

The spelling of 139670954 in words is "one hundred thirty-nine million, six hundred seventy thousand, nine hundred fifty-four".