157492219 has 2 divisors, whose sum is σ = 157492220. Its totient is φ = 157492218.

The previous prime is 157492217. The next prime is 157492249. The reversal of 157492219 is 912294751.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157492219 - 2¹ = 157492217 is a prime.

It is a super-2 number, since 2×157492219² = 49607598091087922, which contains 22 as substring.

Together with 157492217, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (157492211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78746109 + 78746110.

It is an arithmetic number, because the mean of its divisors is an integer number (78746110).

Almost surely, 2^157492219 is an apocalyptic number.

157492219 is a deficient number, since it is larger than the sum of its proper divisors (1).

157492219 is an equidigital number, since it uses as much as digits as its factorization.

157492219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 40.

The square root of 157492219 is about 12549.5903917220. The cubic root of 157492219 is about 540.0322557321.

The spelling of 157492219 in words is "one hundred fifty-seven million, four hundred ninety-two thousand, two hundred nineteen".