139476099 has 48 divisors (see below), whose sum is σ = 226000896. Its totient is φ = 76204800.

The previous prime is 139476097. The next prime is 139476101. The reversal of 139476099 is 990674931.

It is a Cunningham number, because it is equal to 11810²-1.

It is an interprime number because it is at equal distance from previous prime (139476097) and next prime (139476101).

It is not a de Polignac number, because 139476099 - 2¹ = 139476097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139476097) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 578619 + ... + 578859.

It is an arithmetic number, because the mean of its divisors is an integer number (4708352).

Almost surely, 2^139476099 is an apocalyptic number.

139476099 is a deficient number, since it is larger than the sum of its proper divisors (86524797).

139476099 is a wasteful number, since it uses less digits than its factorization.

139476099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 48.

The square root of 139476099 is about 11809.9999576630. Note that the first 4 decimals coincide. The cubic root of 139476099 is about 518.6008975071.

The spelling of 139476099 in words is "one hundred thirty-nine million, four hundred seventy-six thousand, ninety-nine".