155237113 has 2 divisors, whose sum is σ = 155237114. Its totient is φ = 155237112.

The previous prime is 155237059. The next prime is 155237123. The reversal of 155237113 is 311732551.

155237113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132987024 + 22250089 = 11532^2 + 4717^2 .

It is a cyclic number.

It is not a de Polignac number, because 155237113 - 2¹⁷ = 155106041 is a prime.

It is a super-2 number, since 2×155237113² = 48197122505149538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (155237123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77618556 + 77618557.

It is an arithmetic number, because the mean of its divisors is an integer number (77618557).

Almost surely, 2^155237113 is an apocalyptic number.

It is an amenable number.

155237113 is a deficient number, since it is larger than the sum of its proper divisors (1).

155237113 is an equidigital number, since it uses as much as digits as its factorization.

155237113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3150, while the sum is 28.

The square root of 155237113 is about 12459.4186461488. The cubic root of 155237113 is about 537.4423091498.

Adding to 155237113 its reverse (311732551), we get a palindrome (466969664).

The spelling of 155237113 in words is "one hundred fifty-five million, two hundred thirty-seven thousand, one hundred thirteen".