155161701 has 12 divisors (see below), whose sum is σ = 224347500. Its totient is φ = 103337280.

The previous prime is 155161667. The next prime is 155161739. The reversal of 155161701 is 107161551.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 97416900 + 57744801 = 9870^2 + 7599^2 .

It is not a de Polignac number, because 155161701 - 2⁶ = 155161637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155161901) 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, 1425 + ... + 17673.

It is an arithmetic number, because the mean of its divisors is an integer number (18695625).

Almost surely, 2^155161701 is an apocalyptic number.

It is an amenable number.

155161701 is a deficient number, since it is larger than the sum of its proper divisors (69185799).

155161701 is a wasteful number, since it uses less digits than its factorization.

155161701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17316 (or 17313 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 27.

The square root of 155161701 is about 12456.3919736013. The cubic root of 155161701 is about 537.3552677559.

The spelling of 155161701 in words is "one hundred fifty-five million, one hundred sixty-one thousand, seven hundred one".