157284497 has 8 divisors (see below), whose sum is σ = 162983040. Its totient is φ = 151678800.

The previous prime is 157284473. The next prime is 157284499. The reversal of 157284497 is 794482751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157284497 - 2²² = 153090193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157284499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19754 + ... + 26547.

It is an arithmetic number, because the mean of its divisors is an integer number (20372880).

Almost surely, 2^157284497 is an apocalyptic number.

It is an amenable number.

157284497 is a deficient number, since it is larger than the sum of its proper divisors (5698543).

157284497 is an equidigital number, since it uses as much as digits as its factorization.

157284497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46423.

The product of its digits is 564480, while the sum is 47.

The square root of 157284497 is about 12541.3116140219. The cubic root of 157284497 is about 539.7947287927.

The spelling of 157284497 in words is "one hundred fifty-seven million, two hundred eighty-four thousand, four hundred ninety-seven".