157093693 has 4 divisors (see below), whose sum is σ = 160436160. Its totient is φ = 153751228.

The previous prime is 157093687. The next prime is 157093697. The reversal of 157093693 is 396390751.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 157093693 - 2⁵ = 157093661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157093697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1671163 + ... + 1671256.

It is an arithmetic number, because the mean of its divisors is an integer number (40109040).

Almost surely, 2^157093693 is an apocalyptic number.

It is an amenable number.

157093693 is a deficient number, since it is larger than the sum of its proper divisors (3342467).

157093693 is an equidigital number, since it uses as much as digits as its factorization.

157093693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3342466.

The product of its (nonzero) digits is 153090, while the sum is 43.

The square root of 157093693 is about 12533.7022862361. The cubic root of 157093693 is about 539.5763629828.

The spelling of 157093693 in words is "one hundred fifty-seven million, ninety-three thousand, six hundred ninety-three".