155712671 has 4 divisors (see below), whose sum is σ = 156573144. Its totient is φ = 154852200.

The previous prime is 155712647. The next prime is 155712701. The reversal of 155712671 is 176217551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 176217551 = 107 ⋅1646893.

It is a cyclic number.

It is not a de Polignac number, because 155712671 - 2¹⁴ = 155696287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155712611) 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, 429965 + ... + 430326.

It is an arithmetic number, because the mean of its divisors is an integer number (39143286).

Almost surely, 2^155712671 is an apocalyptic number.

155712671 is a deficient number, since it is larger than the sum of its proper divisors (860473).

155712671 is an equidigital number, since it uses as much as digits as its factorization.

155712671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860472.

The product of its digits is 14700, while the sum is 35.

The square root of 155712671 is about 12478.4883299220. The cubic root of 155712671 is about 537.9905552899.

The spelling of 155712671 in words is "one hundred fifty-five million, seven hundred twelve thousand, six hundred seventy-one".