155954023 has 2 divisors, whose sum is σ = 155954024. Its totient is φ = 155954022.

The previous prime is 155954011. The next prime is 155954063. The reversal of 155954023 is 320459551.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155954023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155954023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155954063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77977011 + 77977012.

It is an arithmetic number, because the mean of its divisors is an integer number (77977012).

Almost surely, 2^155954023 is an apocalyptic number.

155954023 is a deficient number, since it is larger than the sum of its proper divisors (1).

155954023 is an equidigital number, since it uses as much as digits as its factorization.

155954023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 155954023 is about 12488.1553081310. The cubic root of 155954023 is about 538.2683705495.

The spelling of 155954023 in words is "one hundred fifty-five million, nine hundred fifty-four thousand, twenty-three".