139198995 has 96 divisors (see below), whose sum is σ = 273873600. Its totient is φ = 64945152.

The previous prime is 139198993. The next prime is 139199023. The reversal of 139198995 is 599891931.

It is not a de Polignac number, because 139198995 - 2¹ = 139198993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139198993) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1277001 + ... + 1277109.

It is an arithmetic number, because the mean of its divisors is an integer number (2852850).

Almost surely, 2^139198995 is an apocalyptic number.

139198995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

139198995 is a deficient number, since it is larger than the sum of its proper divisors (134674605).

139198995 is a wasteful number, since it uses less digits than its factorization.

139198995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 226 counting only the distinct ones).

The product of its digits is 787320, while the sum is 54.

The square root of 139198995 is about 11798.2623720614. The cubic root of 139198995 is about 518.2572265393.

The spelling of 139198995 in words is "one hundred thirty-nine million, one hundred ninety-eight thousand, nine hundred ninety-five".