139090162 has 4 divisors (see below), whose sum is σ = 208635246. Its totient is φ = 69545080.

The previous prime is 139090157. The next prime is 139090169. The reversal of 139090162 is 261090931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 261090931 = 1117 ⋅233743.

It can be written as a sum of positive squares in only one way, i.e., 130393561 + 8696601 = 11419^2 + 2949^2 .

It is not an unprimeable number, because it can be changed into a prime (139090169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34772539 + ... + 34772542.

Almost surely, 2^139090162 is an apocalyptic number.

139090162 is a deficient number, since it is larger than the sum of its proper divisors (69545084).

139090162 is an equidigital number, since it uses as much as digits as its factorization.

139090162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69545083.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 139090162 is about 11793.6492232048. The cubic root of 139090162 is about 518.1221245226.

The spelling of 139090162 in words is "one hundred thirty-nine million, ninety thousand, one hundred sixty-two".