139082954 has 4 divisors (see below), whose sum is σ = 208624434. Its totient is φ = 69541476.

The previous prime is 139082939. The next prime is 139082981. The reversal of 139082954 is 459280931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 459280931 = 461 ⋅996271.

It can be written as a sum of positive squares in only one way, i.e., 105616729 + 33466225 = 10277^2 + 5785^2 .

It is a super-2 number, since 2×139082954² = 38688136186732232, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34770737 + ... + 34770740.

Almost surely, 2^139082954 is an apocalyptic number.

139082954 is a deficient number, since it is larger than the sum of its proper divisors (69541480).

139082954 is an equidigital number, since it uses as much as digits as its factorization.

139082954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69541479.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 139082954 is about 11793.3436310488. The cubic root of 139082954 is about 518.1131742400.

The spelling of 139082954 in words is "one hundred thirty-nine million, eighty-two thousand, nine hundred fifty-four".