155097713 has 4 divisors (see below), whose sum is σ = 160445940. Its totient is φ = 149749488.

The previous prime is 155097707. The next prime is 155097737. The reversal of 155097713 is 317790551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 317790551 = 13 ⋅24445427.

It can be written as a sum of positive squares in 2 ways, for example, as 63091249 + 92006464 = 7943^2 + 9592^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155097713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155097113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2674070 + ... + 2674127.

It is an arithmetic number, because the mean of its divisors is an integer number (40111485).

Almost surely, 2^155097713 is an apocalyptic number.

It is an amenable number.

155097713 is a deficient number, since it is larger than the sum of its proper divisors (5348227).

155097713 is an equidigital number, since it uses as much as digits as its factorization.

155097713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5348226.

The product of its (nonzero) digits is 33075, while the sum is 38.

The square root of 155097713 is about 12453.8232282300. The cubic root of 155097713 is about 537.2813899532.

The spelling of 155097713 in words is "one hundred fifty-five million, ninety-seven thousand, seven hundred thirteen".