157387207 has 8 divisors (see below), whose sum is σ = 167032800. Its totient is φ = 147784704.

The previous prime is 157387201. The next prime is 157387211. The reversal of 157387207 is 702783751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157387207 - 2⁷ = 157387079 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157387207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157387201) 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 in 7 ways as a sum of consecutive naturals, for example, 3082 + ... + 18007.

It is an arithmetic number, because the mean of its divisors is an integer number (20879100).

Almost surely, 2^157387207 is an apocalyptic number.

157387207 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

157387207 is a deficient number, since it is larger than the sum of its proper divisors (9645593).

157387207 is a wasteful number, since it uses less digits than its factorization.

157387207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21545.

The product of its (nonzero) digits is 82320, while the sum is 40.

The square root of 157387207 is about 12545.4058124877. The cubic root of 157387207 is about 539.9122022325.

The spelling of 157387207 in words is "one hundred fifty-seven million, three hundred eighty-seven thousand, two hundred seven".