155051023 has 16 divisors (see below), whose sum is σ = 164462400. Its totient is φ = 145949440.

The previous prime is 155051021. The next prime is 155051041. The reversal of 155051023 is 320150551.

It is a cyclic number.

It is not a de Polignac number, because 155051023 - 2¹ = 155051021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155050985 and 155051003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155051021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 431718 + ... + 432076.

It is an arithmetic number, because the mean of its divisors is an integer number (10278900).

Almost surely, 2^155051023 is an apocalyptic number.

155051023 is a deficient number, since it is larger than the sum of its proper divisors (9411377).

155051023 is a wasteful number, since it uses less digits than its factorization.

155051023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 155051023 is about 12451.9485623737. The cubic root of 155051023 is about 537.2274708565.

The spelling of 155051023 in words is "one hundred fifty-five million, fifty-one thousand, twenty-three".