155239653 has 16 divisors (see below), whose sum is σ = 213998400. Its totient is φ = 100033920.

The previous prime is 155239607. The next prime is 155239681. The reversal of 155239653 is 356932551.

It is not a de Polignac number, because 155239653 - 2⁹ = 155239141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155232653) 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, 7618 + ... + 19196.

It is an arithmetic number, because the mean of its divisors is an integer number (13374900).

Almost surely, 2^155239653 is an apocalyptic number.

It is an amenable number.

155239653 is a deficient number, since it is larger than the sum of its proper divisors (58758747).

155239653 is a wasteful number, since it uses less digits than its factorization.

155239653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11732.

The product of its digits is 121500, while the sum is 39.

The square root of 155239653 is about 12459.5205766514. The cubic root of 155239653 is about 537.4452403561.

The spelling of 155239653 in words is "one hundred fifty-five million, two hundred thirty-nine thousand, six hundred fifty-three".