155541671 has 4 divisors (see below), whose sum is σ = 156729144. Its totient is φ = 154354200.

The previous prime is 155541667. The next prime is 155541677. The reversal of 155541671 is 176145551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 176145551 = 17 ⋅10361503.

It is a cyclic number.

It is not a de Polignac number, because 155541671 - 2² = 155541667 is a prime.

It is a super-2 number, since 2×155541671² = 48386422834944482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155541677) 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, 593540 + ... + 593801.

It is an arithmetic number, because the mean of its divisors is an integer number (39182286).

Almost surely, 2^155541671 is an apocalyptic number.

155541671 is a deficient number, since it is larger than the sum of its proper divisors (1187473).

155541671 is a wasteful number, since it uses less digits than its factorization.

155541671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187472.

The product of its digits is 21000, while the sum is 35.

The square root of 155541671 is about 12471.6346562911. The cubic root of 155541671 is about 537.7935469561.

The spelling of 155541671 in words is "one hundred fifty-five million, five hundred forty-one thousand, six hundred seventy-one".