1490957461 has 4 divisors (see below), whose sum is σ = 1703951392. Its totient is φ = 1277963532.

The previous prime is 1490957407. The next prime is 1490957467. The reversal of 1490957461 is 1647590941.

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 1490957461 - 2⁹ = 1490956949 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 (1490957467) 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, 106496955 + ... + 106496968.

It is an arithmetic number, because the mean of its divisors is an integer number (425987848).

Almost surely, 2^1490957461 is an apocalyptic number.

It is an amenable number.

1490957461 is a deficient number, since it is larger than the sum of its proper divisors (212993931).

1490957461 is an equidigital number, since it uses as much as digits as its factorization.

1490957461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212993930.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 1490957461 is about 38612.9183175786. The cubic root of 1490957461 is about 1142.4093551708.

The spelling of 1490957461 in words is "one billion, four hundred ninety million, nine hundred fifty-seven thousand, four hundred sixty-one".