15475261 has 2 divisors, whose sum is σ = 15475262. Its totient is φ = 15475260.

The previous prime is 15475259. The next prime is 15475277. The reversal of 15475261 is 16257451.

15475261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15452761 + 22500 = 3931^2 + 150^2 .

It is a cyclic number.

It is not a de Polignac number, because 15475261 - 2¹ = 15475259 is a prime.

Together with 15475259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15473261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7737630 + 7737631.

It is an arithmetic number, because the mean of its divisors is an integer number (7737631).

Almost surely, 2^15475261 is an apocalyptic number.

It is an amenable number.

15475261 is a deficient number, since it is larger than the sum of its proper divisors (1).

15475261 is an equidigital number, since it uses as much as digits as its factorization.

15475261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 31.

The square root of 15475261 is about 3933.8608262113. The cubic root of 15475261 is about 249.1988272315.

The spelling of 15475261 in words is "fifteen million, four hundred seventy-five thousand, two hundred sixty-one".