157292389 has 2 divisors, whose sum is σ = 157292390. Its totient is φ = 157292388.

The previous prime is 157292363. The next prime is 157292411. The reversal of 157292389 is 983292751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101909025 + 55383364 = 10095^2 + 7442^2 .

It is a cyclic number.

It is not a de Polignac number, because 157292389 - 2¹⁷ = 157161317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157292339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78646194 + 78646195.

It is an arithmetic number, because the mean of its divisors is an integer number (78646195).

Almost surely, 2^157292389 is an apocalyptic number.

It is an amenable number.

157292389 is a deficient number, since it is larger than the sum of its proper divisors (1).

157292389 is an equidigital number, since it uses as much as digits as its factorization.

157292389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 46.

The square root of 157292389 is about 12541.6262502117. The cubic root of 157292389 is about 539.8037569950.

It can be divided in two parts, 1572 and 92389, that added together give a triangular number (93961 = T₄₃₃).

The spelling of 157292389 in words is "one hundred fifty-seven million, two hundred ninety-two thousand, three hundred eighty-nine".