155088205031 has 4 divisors (see below), whose sum is σ = 160436074200. Its totient is φ = 149740335864.

The previous prime is 155088205009. The next prime is 155088205037. The reversal of 155088205031 is 130502880551.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155088205031 is a prime.

It is a super-2 number, since 2×155088205031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155088205037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2673934541 + ... + 2673934598.

It is an arithmetic number, because the mean of its divisors is an integer number (40109018550).

Almost surely, 2^155088205031 is an apocalyptic number.

155088205031 is a deficient number, since it is larger than the sum of its proper divisors (5347869169).

155088205031 is an equidigital number, since it uses as much as digits as its factorization.

155088205031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5347869168.

The product of its (nonzero) digits is 48000, while the sum is 38.

The spelling of 155088205031 in words is "one hundred fifty-five billion, eighty-eight million, two hundred five thousand, thirty-one".