157093861 has 4 divisors (see below), whose sum is σ = 158002092. Its totient is φ = 156185632.

The previous prime is 157093847. The next prime is 157093877. The reversal of 157093861 is 168390751.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 122213025 + 34880836 = 11055^2 + 5906^2 .

It is a cyclic number.

It is not a de Polignac number, because 157093861 - 2¹⁹ = 156569573 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157093831) 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, 453856 + ... + 454201.

It is an arithmetic number, because the mean of its divisors is an integer number (39500523).

Almost surely, 2^157093861 is an apocalyptic number.

It is an amenable number.

157093861 is a deficient number, since it is larger than the sum of its proper divisors (908231).

157093861 is an equidigital number, since it uses as much as digits as its factorization.

157093861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908230.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 157093861 is about 12533.7089881647. The cubic root of 157093861 is about 539.5765553283.

The spelling of 157093861 in words is "one hundred fifty-seven million, ninety-three thousand, eight hundred sixty-one".