157450289 has 4 divisors (see below), whose sum is σ = 157987956. Its totient is φ = 156912624.

The previous prime is 157450261. The next prime is 157450301. The reversal of 157450289 is 982054751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 982054751 = 28307 ⋅34693.

It can be written as a sum of positive squares in 2 ways, for example, as 92486689 + 64963600 = 9617^2 + 8060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157450289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157450259) 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, 268394 + ... + 268979.

It is an arithmetic number, because the mean of its divisors is an integer number (39496989).

Almost surely, 2^157450289 is an apocalyptic number.

It is an amenable number.

157450289 is a deficient number, since it is larger than the sum of its proper divisors (537667).

157450289 is an equidigital number, since it uses as much as digits as its factorization.

157450289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537666.

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 157450289 is about 12547.9197080632. The cubic root of 157450289 is about 539.9843262483.

The spelling of 157450289 in words is "one hundred fifty-seven million, four hundred fifty thousand, two hundred eighty-nine".