157815041 has 2 divisors, whose sum is σ = 157815042. Its totient is φ = 157815040.

The previous prime is 157815019. The next prime is 157815089. The reversal of 157815041 is 140518751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153388225 + 4426816 = 12385^2 + 2104^2 .

It is a cyclic number.

It is not a de Polignac number, because 157815041 - 2¹⁸ = 157552897 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 157814989 and 157815007.

It is not a weakly prime, because it can be changed into another prime (157815001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78907520 + 78907521.

It is an arithmetic number, because the mean of its divisors is an integer number (78907521).

Almost surely, 2^157815041 is an apocalyptic number.

It is an amenable number.

157815041 is a deficient number, since it is larger than the sum of its proper divisors (1).

157815041 is an equidigital number, since it uses as much as digits as its factorization.

157815041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5600, while the sum is 32.

The square root of 157815041 is about 12562.4456615740. The cubic root of 157815041 is about 540.4009836068.

The spelling of 157815041 in words is "one hundred fifty-seven million, eight hundred fifteen thousand, forty-one".