1455657983 has 16 divisors (see below), whose sum is σ = 1587476352. Its totient is φ = 1326780000.

The previous prime is 1455657949. The next prime is 1455657989. The reversal of 1455657983 is 3897565541.

It is a happy number.

It is not a de Polignac number, because 1455657983 - 2⁶ = 1455657919 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 (1455657989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357308 + ... + 361358.

It is an arithmetic number, because the mean of its divisors is an integer number (99217272).

Almost surely, 2^1455657983 is an apocalyptic number.

1455657983 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1455657983 is a deficient number, since it is larger than the sum of its proper divisors (131818369).

1455657983 is a wasteful number, since it uses less digits than its factorization.

1455657983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4406.

The product of its digits is 4536000, while the sum is 53.

The square root of 1455657983 is about 38153.0861530231. The cubic root of 1455657983 is about 1133.3214679746.

The spelling of 1455657983 in words is "one billion, four hundred fifty-five million, six hundred fifty-seven thousand, nine hundred eighty-three".