1145621624 has 24 divisors (see below), whose sum is σ = 2455446360. Its totient is φ = 490872144.

The previous prime is 1145621591. The next prime is 1145621657. The reversal of 1145621624 is 4261265411.

It is an interprime number because it is at equal distance from previous prime (1145621591) and next prime (1145621657).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 251027 + ... + 255549.

It is an arithmetic number, because the mean of its divisors is an integer number (102310265).

Almost surely, 2^1145621624 is an apocalyptic number.

1145621624 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1145621624 is an abundant number, since it is smaller than the sum of its proper divisors (1309824736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145621624 is an frugal number, since it uses more digits than its factorization.

1145621624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9059 (or 4532 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 1145621624 is about 33847.0327207571. The cubic root of 1145621624 is about 1046.3582451417.

The spelling of 1145621624 in words is "one billion, one hundred forty-five million, six hundred twenty-one thousand, six hundred twenty-four".