315948541 has 2 divisors, whose sum is σ = 315948542. Its totient is φ = 315948540.

The previous prime is 315948517. The next prime is 315948593. The reversal of 315948541 is 145849513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208224900 + 107723641 = 14430^2 + 10379^2 .

It is a cyclic number.

It is not a de Polignac number, because 315948541 - 2¹⁵ = 315915773 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 315948494 and 315948503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315948041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157974270 + 157974271.

It is an arithmetic number, because the mean of its divisors is an integer number (157974271).

Almost surely, 2^315948541 is an apocalyptic number.

It is an amenable number.

315948541 is a deficient number, since it is larger than the sum of its proper divisors (1).

315948541 is an equidigital number, since it uses as much as digits as its factorization.

315948541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 40.

The square root of 315948541 is about 17774.9413782437. The cubic root of 315948541 is about 681.0914859881.

The spelling of 315948541 in words is "three hundred fifteen million, nine hundred forty-eight thousand, five hundred forty-one".