1495409957 has 2 divisors, whose sum is σ = 1495409958. Its totient is φ = 1495409956.

The previous prime is 1495409831. The next prime is 1495409963. The reversal of 1495409957 is 7599045941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1150973476 + 344436481 = 33926^2 + 18559^2 .

It is a cyclic number.

It is not a de Polignac number, because 1495409957 - 2²² = 1491215653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1495409899 and 1495409908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1495409987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 747704978 + 747704979.

It is an arithmetic number, because the mean of its divisors is an integer number (747704979).

Almost surely, 2^1495409957 is an apocalyptic number.

It is an amenable number.

1495409957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1495409957 is an equidigital number, since it uses as much as digits as its factorization.

1495409957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2041200, while the sum is 53.

The square root of 1495409957 is about 38670.5308600748. The cubic root of 1495409957 is about 1143.5454300757.

The spelling of 1495409957 in words is "one billion, four hundred ninety-five million, four hundred nine thousand, nine hundred fifty-seven".