155042623 has 8 divisors (see below), whose sum is σ = 157955840. Its totient is φ = 152147160.

The previous prime is 155042611. The next prime is 155042639. The reversal of 155042623 is 326240551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155042623 - 2¹³ = 155034431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155042591 and 155042600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155042653) 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 7 ways as a sum of consecutive naturals, for example, 13888 + ... + 22426.

It is an arithmetic number, because the mean of its divisors is an integer number (19744480).

Almost surely, 2^155042623 is an apocalyptic number.

155042623 is a deficient number, since it is larger than the sum of its proper divisors (2913217).

155042623 is an equidigital number, since it uses as much as digits as its factorization.

155042623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8877.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 155042623 is about 12451.6112611983. The cubic root of 155042623 is about 537.2177691206.

The spelling of 155042623 in words is "one hundred fifty-five million, forty-two thousand, six hundred twenty-three".