152121541 has 16 divisors (see below), whose sum is σ = 183552768. Its totient is φ = 124200000.

The previous prime is 152121533. The next prime is 152121569. The reversal of 152121541 is 145121251.

It is a 5-Lehmer number, since φ(152121541) divides (152121541-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 152121541 - 2³ = 152121533 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 (152121941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9085 + ... + 19666.

It is an arithmetic number, because the mean of its divisors is an integer number (11472048).

Almost surely, 2^152121541 is an apocalyptic number.

152121541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

152121541 is a deficient number, since it is larger than the sum of its proper divisors (31431227).

152121541 is a wasteful number, since it uses less digits than its factorization.

152121541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28812.

The product of its digits is 400, while the sum is 22.

The square root of 152121541 is about 12333.7561594188. The cubic root of 152121541 is about 533.8225375513.

Adding to 152121541 its reverse (145121251), we get a palindrome (297242792).

The spelling of 152121541 in words is "one hundred fifty-two million, one hundred twenty-one thousand, five hundred forty-one".