315742097 has 4 divisors (see below), whose sum is σ = 344445936. Its totient is φ = 287038260.

The previous prime is 315742087. The next prime is 315742103. The reversal of 315742097 is 790247513.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 315742097 - 2⁶ = 315742033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 315742097.

It is not an unprimeable number, because it can be changed into a prime (315742027) 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, 14351903 + ... + 14351924.

It is an arithmetic number, because the mean of its divisors is an integer number (86111484).

Almost surely, 2^315742097 is an apocalyptic number.

It is an amenable number.

315742097 is a deficient number, since it is larger than the sum of its proper divisors (28703839).

315742097 is a wasteful number, since it uses less digits than its factorization.

315742097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28703838.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 315742097 is about 17769.1332653003. The cubic root of 315742097 is about 680.9431096247.

It can be divided in two parts, 3157 and 42097, that added together give a palindrome (45254).

The spelling of 315742097 in words is "three hundred fifteen million, seven hundred forty-two thousand, ninety-seven".