315450661 has 8 divisors (see below), whose sum is σ = 326661120. Its totient is φ = 304262448.

The previous prime is 315450617. The next prime is 315450677. The reversal of 315450661 is 166054513.

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 315450661 - 2⁷ = 315450533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315420661) 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, 26520 + ... + 36526.

It is an arithmetic number, because the mean of its divisors is an integer number (40832640).

Almost surely, 2^315450661 is an apocalyptic number.

It is an amenable number.

315450661 is a deficient number, since it is larger than the sum of its proper divisors (11210459).

315450661 is a wasteful number, since it uses less digits than its factorization.

315450661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11123.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 315450661 is about 17760.9307470076. The cubic root of 315450661 is about 680.7335372897.

The spelling of 315450661 in words is "three hundred fifteen million, four hundred fifty thousand, six hundred sixty-one".