155052031 has 2 divisors, whose sum is σ = 155052032. Its totient is φ = 155052030.

The previous prime is 155052011. The next prime is 155052041. The reversal of 155052031 is 130250551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 155052031 - 2⁵ = 155051999 is a prime.

It is a super-2 number, since 2×155052031² = 48082264634449922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155051993 and 155052011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155052011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77526015 + 77526016.

It is an arithmetic number, because the mean of its divisors is an integer number (77526016).

Almost surely, 2^155052031 is an apocalyptic number.

155052031 is a deficient number, since it is larger than the sum of its proper divisors (1).

155052031 is an equidigital number, since it uses as much as digits as its factorization.

155052031 is an odious number, because the sum of its binary digits is odd.

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

The square root of 155052031 is about 12451.9890379007. The cubic root of 155052031 is about 537.2286350413.

It can be divided in two parts, 1550520 and 31, that added together give a palindrome (1550551).

The spelling of 155052031 in words is "one hundred fifty-five million, fifty-two thousand, thirty-one".