157210541 has 4 divisors (see below), whose sum is σ = 165484800. Its totient is φ = 148936284.

The previous prime is 157210507. The next prime is 157210567. The reversal of 157210541 is 145012751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 145012751 = 13 ⋅11154827.

It is a cyclic number.

It is not a de Polignac number, because 157210541 - 2¹⁴ = 157194157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157210541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157210841) 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, 4137101 + ... + 4137138.

It is an arithmetic number, because the mean of its divisors is an integer number (41371200).

Almost surely, 2^157210541 is an apocalyptic number.

It is an amenable number.

157210541 is a deficient number, since it is larger than the sum of its proper divisors (8274259).

157210541 is an equidigital number, since it uses as much as digits as its factorization.

157210541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8274258.

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 157210541 is about 12538.3627719093. The cubic root of 157210541 is about 539.7101107526.

It can be divided in two parts, 157210 and 541, that added together give a palindrome (157751).

The spelling of 157210541 in words is "one hundred fifty-seven million, two hundred ten thousand, five hundred forty-one".