157051019 has 2 divisors, whose sum is σ = 157051020. Its totient is φ = 157051018.

The previous prime is 157051009. The next prime is 157051039. The reversal of 157051019 is 910150751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157051019 - 2⁴ = 157051003 is a prime.

It is a super-2 number, since 2×157051019² = 49330045137876722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 157050982 and 157051000.

It is not a weakly prime, because it can be changed into another prime (157051009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78525509 + 78525510.

It is an arithmetic number, because the mean of its divisors is an integer number (78525510).

Almost surely, 2^157051019 is an apocalyptic number.

157051019 is a deficient number, since it is larger than the sum of its proper divisors (1).

157051019 is an equidigital number, since it uses as much as digits as its factorization.

157051019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1575, while the sum is 29.

The square root of 157051019 is about 12531.9998005107. Note that the first 3 decimals coincide. The cubic root of 157051019 is about 539.5275004928.

The spelling of 157051019 in words is "one hundred fifty-seven million, fifty-one thousand, nineteen".