139553953 has 16 divisors (see below), whose sum is σ = 174312576. Its totient is φ = 108541440.

The previous prime is 139553927. The next prime is 139553957. The reversal of 139553953 is 359355931.

It is a de Polignac number, because none of the positive numbers 2^k-139553953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139553957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50475 + ... + 53167.

It is an arithmetic number, because the mean of its divisors is an integer number (10894536).

Almost surely, 2^139553953 is an apocalyptic number.

It is an amenable number.

139553953 is a deficient number, since it is larger than the sum of its proper divisors (34758623).

139553953 is a wasteful number, since it uses less digits than its factorization.

139553953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3384.

The product of its digits is 273375, while the sum is 43.

The square root of 139553953 is about 11813.2956028367. The cubic root of 139553953 is about 518.6973719678.

The spelling of 139553953 in words is "one hundred thirty-nine million, five hundred fifty-three thousand, nine hundred fifty-three".