157211041 has 8 divisors (see below), whose sum is σ = 169405544. Its totient is φ = 145031040.

The previous prime is 157211029. The next prime is 157211051. The reversal of 157211041 is 140112751.

It can be written as a sum of positive squares in 4 ways, for example, as 29430625 + 127780416 = 5425^2 + 11304^2 .

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 157211041 - 2⁵ = 157211009 is a prime.

It is a super-2 number, since 2×157211041² = 49430622824607362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157211051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31711 + ... + 36331.

It is an arithmetic number, because the mean of its divisors is an integer number (21175693).

Almost surely, 2^157211041 is an apocalyptic number.

It is an amenable number.

157211041 is a deficient number, since it is larger than the sum of its proper divisors (12194503).

157211041 is a wasteful number, since it uses less digits than its factorization.

157211041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7251.

The product of its (nonzero) digits is 280, while the sum is 22.

The square root of 157211041 is about 12538.3827107008. The cubic root of 157211041 is about 539.7106829254.

Adding to 157211041 its reverse (140112751), we get a palindrome (297323792).

The spelling of 157211041 in words is "one hundred fifty-seven million, two hundred eleven thousand, forty-one".