157458361 has 2 divisors, whose sum is σ = 157458362. Its totient is φ = 157458360.

The previous prime is 157458359. The next prime is 157458373. The reversal of 157458361 is 163854751.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141610000 + 15848361 = 11900^2 + 3981^2 .

It is an emirp because it is prime and its reverse (163854751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157458361 - 2¹ = 157458359 is a prime.

Together with 157458359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (157458341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78729180 + 78729181.

It is an arithmetic number, because the mean of its divisors is an integer number (78729181).

Almost surely, 2^157458361 is an apocalyptic number.

It is an amenable number.

157458361 is a deficient number, since it is larger than the sum of its proper divisors (1).

157458361 is an equidigital number, since it uses as much as digits as its factorization.

157458361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 40.

The square root of 157458361 is about 12548.2413508826. The cubic root of 157458361 is about 539.9935538782.

The spelling of 157458361 in words is "one hundred fifty-seven million, four hundred fifty-eight thousand, three hundred sixty-one".