155253701 has 2 divisors, whose sum is σ = 155253702. Its totient is φ = 155253700.

The previous prime is 155253691. The next prime is 155253713. The reversal of 155253701 is 107352551.

It is a happy number.

155253701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147136900 + 8116801 = 12130^2 + 2849^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155253701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155253781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77626850 + 77626851.

It is an arithmetic number, because the mean of its divisors is an integer number (77626851).

Almost surely, 2^155253701 is an apocalyptic number.

It is an amenable number.

155253701 is a deficient number, since it is larger than the sum of its proper divisors (1).

155253701 is an equidigital number, since it uses as much as digits as its factorization.

155253701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 155253701 is about 12460.0843095061. The cubic root of 155253701 is about 537.4614514269.

The spelling of 155253701 in words is "one hundred fifty-five million, two hundred fifty-three thousand, seven hundred one".