157858741 has 2 divisors, whose sum is σ = 157858742. Its totient is φ = 157858740.

The previous prime is 157858721. The next prime is 157858747. The reversal of 157858741 is 147858751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135815716 + 22043025 = 11654^2 + 4695^2 .

It is a cyclic number.

It is not a de Polignac number, because 157858741 - 2¹⁹ = 157334453 is a prime.

It is a super-2 number, since 2×157858741² = 49838764220210162, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 157858691 and 157858700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157858747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78929370 + 78929371.

It is an arithmetic number, because the mean of its divisors is an integer number (78929371).

Almost surely, 2^157858741 is an apocalyptic number.

It is an amenable number.

157858741 is a deficient number, since it is larger than the sum of its proper divisors (1).

157858741 is an equidigital number, since it uses as much as digits as its factorization.

157858741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 313600, while the sum is 46.

The square root of 157858741 is about 12564.1848521900. The cubic root of 157858741 is about 540.4508591729.

The spelling of 157858741 in words is "one hundred fifty-seven million, eight hundred fifty-eight thousand, seven hundred forty-one".