1494672921 has 45 divisors (see below), whose sum is σ = 2528263829. Its totient is φ = 850851288.

The previous prime is 1494672911. The next prime is 1494672931. The reversal of 1494672921 is 1292764941.

The square root of 1494672921 is 38661.

It is a perfect power (a square), and thus also a powerful number.

1494672921 is a `hidden beast` number, since 1 + 494 + 6 + 72 + 92 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1494672911) and next prime (1494672931).

It is not a de Polignac number, because 1494672921 - 2²⁷ = 1360455193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1494672911) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 5683036 + ... + 5683298.

Almost surely, 2^1494672921 is an apocalyptic number.

1494672921 is the 38661-st square number.

1494672921 is the 19331-st centered octagonal number.

It is an amenable number.

1494672921 is a deficient number, since it is larger than the sum of its proper divisors (1033590908).

1494672921 is an frugal number, since it uses more digits than its factorization.

1494672921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560 (or 273 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The cubic root of 1494672921 is about 1143.3575278327.

The spelling of 1494672921 in words is "one billion, four hundred ninety-four million, six hundred seventy-two thousand, nine hundred twenty-one".