152157181 has 8 divisors (see below), whose sum is σ = 166078944. Its totient is φ = 138250320.

The previous prime is 152157179. The next prime is 152157197. The reversal of 152157181 is 181751251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 152157181 - 2¹ = 152157179 is a prime.

It is a super-2 number, since 2×152157181² = 46303615459733522, 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 (152157101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38175 + ... + 41971.

It is an arithmetic number, because the mean of its divisors is an integer number (20759868).

Almost surely, 2^152157181 is an apocalyptic number.

152157181 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

152157181 is a deficient number, since it is larger than the sum of its proper divisors (13921763).

152157181 is a wasteful number, since it uses less digits than its factorization.

152157181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7451.

The product of its digits is 2800, while the sum is 31.

The square root of 152157181 is about 12335.2008901355. The cubic root of 152157181 is about 533.8642234066.

The spelling of 152157181 in words is "one hundred fifty-two million, one hundred fifty-seven thousand, one hundred eighty-one".