1450631491 has 4 divisors (see below), whose sum is σ = 1450782592. Its totient is φ = 1450480392.

The previous prime is 1450631489. The next prime is 1450631527. The reversal of 1450631491 is 1941360541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1450631491 - 2¹ = 1450631489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1450631461) 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, 60096 + ... + 80701.

It is an arithmetic number, because the mean of its divisors is an integer number (362695648).

Almost surely, 2^1450631491 is an apocalyptic number.

1450631491 is a deficient number, since it is larger than the sum of its proper divisors (151101).

1450631491 is a wasteful number, since it uses less digits than its factorization.

1450631491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151100.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 1450631491 is about 38087.1565097737. The cubic root of 1450631491 is about 1132.0154833440.

The spelling of 1450631491 in words is "one billion, four hundred fifty million, six hundred thirty-one thousand, four hundred ninety-one".