157851007 has 2 divisors, whose sum is σ = 157851008. Its totient is φ = 157851006.

The previous prime is 157850969. The next prime is 157851061. The reversal of 157851007 is 700158751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157851007 - 2¹¹ = 157848959 is a prime.

It is equal to p_8860750 and since 157851007 and 8860750 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157851607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78925503 + 78925504.

It is an arithmetic number, because the mean of its divisors is an integer number (78925504).

Almost surely, 2^157851007 is an apocalyptic number.

157851007 is a deficient number, since it is larger than the sum of its proper divisors (1).

157851007 is an equidigital number, since it uses as much as digits as its factorization.

157851007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9800, while the sum is 34.

The square root of 157851007 is about 12563.8770688032. The cubic root of 157851007 is about 540.4420328953.

The spelling of 157851007 in words is "one hundred fifty-seven million, eight hundred fifty-one thousand, seven".