70155 has 12 divisors (see below), whose sum is σ = 121680. Its totient is φ = 37392.

The previous prime is 70141. The next prime is 70157. The reversal of 70155 is 55107.

70155 = 6² + 7² + ... + 59².

It is a happy number.

It is not a de Polignac number, because 70155 - 2⁴ = 70139 is a prime.

It is a nialpdrome in base 5.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 70155.

It is not an unprimeable number, because it can be changed into a prime (70157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 735 + ... + 824.

It is an arithmetic number, because the mean of its divisors is an integer number (10140).

2⁷⁰¹⁵⁵ is an apocalyptic number.

70155 is a deficient number, since it is larger than the sum of its proper divisors (51525).

70155 is a wasteful number, since it uses less digits than its factorization.

70155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570 (or 1567 counting only the distinct ones).

The product of its (nonzero) digits is 175, while the sum is 18.

The square root of 70155 is about 264.8678915988. The cubic root of 70155 is about 41.2432495841.

It can be divided in two parts, 70 and 155, that added together give a square (225 = 15²).

The spelling of 70155 in words is "seventy thousand, one hundred fifty-five".