155967023 has 4 divisors (see below), whose sum is σ = 156135840. Its totient is φ = 155798208.

The previous prime is 155967011. The next prime is 155967047. The reversal of 155967023 is 320769551.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 155967023 - 2¹² = 155962927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155961023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83015 + ... + 84872.

It is an arithmetic number, because the mean of its divisors is an integer number (39033960).

Almost surely, 2^155967023 is an apocalyptic number.

155967023 is a deficient number, since it is larger than the sum of its proper divisors (168817).

155967023 is an equidigital number, since it uses as much as digits as its factorization.

155967023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168816.

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 155967023 is about 12488.6757904912. The cubic root of 155967023 is about 538.2833264411.

The spelling of 155967023 in words is "one hundred fifty-five million, nine hundred sixty-seven thousand, twenty-three".