139652428 has 6 divisors (see below), whose sum is σ = 244391756. Its totient is φ = 69826212.

The previous prime is 139652423. The next prime is 139652449. The reversal of 139652428 is 824256931.

It is not an unprimeable number, because it can be changed into a prime (139652423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17456550 + ... + 17456557.

Almost surely, 2^139652428 is an apocalyptic number.

It is an amenable number.

139652428 is a deficient number, since it is larger than the sum of its proper divisors (104739328).

139652428 is a wasteful number, since it uses less digits than its factorization.

139652428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34913111 (or 34913109 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 139652428 is about 11817.4628410670. The cubic root of 139652428 is about 518.8193480038.

It can be divided in two parts, 1396 and 52428, that added together give a square (53824 = 232²).

The spelling of 139652428 in words is "one hundred thirty-nine million, six hundred fifty-two thousand, four hundred twenty-eight".