157200109 has 8 divisors (see below), whose sum is σ = 175674240. Its totient is φ = 139423200.

The previous prime is 157200107. The next prime is 157200119. The reversal of 157200109 is 901002751.

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 157200109 - 2¹ = 157200107 is a prime.

It is a super-2 number, since 2×157200109² = 49423748539223762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157200107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173829 + ... + 174730.

It is an arithmetic number, because the mean of its divisors is an integer number (21959280).

Almost surely, 2^157200109 is an apocalyptic number.

It is an amenable number.

157200109 is a deficient number, since it is larger than the sum of its proper divisors (18474131).

157200109 is a wasteful number, since it uses less digits than its factorization.

157200109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348611.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 157200109 is about 12537.9467617310. The cubic root of 157200109 is about 539.6981726634.

The spelling of 157200109 in words is "one hundred fifty-seven million, two hundred thousand, one hundred nine".