123302157 has 8 divisors (see below), whose sum is σ = 179348640. Its totient is φ = 74728560.

The previous prime is 123302131. The next prime is 123302161. The reversal of 123302157 is 751203321.

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

It is not a de Polignac number, because 123302157 - 2¹⁰ = 123301133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123302357) 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, 1868182 + ... + 1868247.

It is an arithmetic number, because the mean of its divisors is an integer number (22418580).

Almost surely, 2^123302157 is an apocalyptic number.

It is an amenable number.

123302157 is a deficient number, since it is larger than the sum of its proper divisors (56046483).

123302157 is a wasteful number, since it uses less digits than its factorization.

123302157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3736443.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 123302157 is about 11104.1504402633. The cubic root of 123302157 is about 497.7258817872.

Adding to 123302157 its reverse (751203321), we get a palindrome (874505478).

The spelling of 123302157 in words is "one hundred twenty-three million, three hundred two thousand, one hundred fifty-seven".