1494940901 has 4 divisors (see below), whose sum is σ = 1495137600. Its totient is φ = 1494744204.

The previous prime is 1494940871. The next prime is 1494940943. The reversal of 1494940901 is 1090494941.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-1494940901 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 (1494940801) 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, 86471 + ... + 102308.

It is an arithmetic number, because the mean of its divisors is an integer number (373784400).

Almost surely, 2^1494940901 is an apocalyptic number.

It is an amenable number.

1494940901 is a deficient number, since it is larger than the sum of its proper divisors (196699).

1494940901 is an equidigital number, since it uses as much as digits as its factorization.

1494940901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196698.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 1494940901 is about 38664.4656112043. The cubic root of 1494940901 is about 1143.4258546299.

The spelling of 1494940901 in words is "one billion, four hundred ninety-four million, nine hundred forty thousand, nine hundred one".