2293974157 has 2 divisors, whose sum is σ = 2293974158. Its totient is φ = 2293974156.

The previous prime is 2293974121. The next prime is 2293974173. The reversal of 2293974157 is 7514793922.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1198959876 + 1095014281 = 34626^2 + 33091^2 .

It is a cyclic number.

It is not a de Polignac number, because 2293974157 - 2⁷ = 2293974029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2293974157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2293974107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1146987078 + 1146987079.

It is an arithmetic number, because the mean of its divisors is an integer number (1146987079).

Almost surely, 2^2293974157 is an apocalyptic number.

It is an amenable number.

2293974157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2293974157 is an equidigital number, since it uses as much as digits as its factorization.

2293974157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 49.

The square root of 2293974157 is about 47895.4502745303. The cubic root of 2293974157 is about 1318.8523382857.

The spelling of 2293974157 in words is "two billion, two hundred ninety-three million, nine hundred seventy-four thousand, one hundred fifty-seven".