1145102240 has 48 divisors (see below), whose sum is σ = 2710509480. Its totient is φ = 457159680.

The previous prime is 1145102239. The next prime is 1145102251. The reversal of 1145102240 is 422015411.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1122786064 + 22316176 = 33508^2 + 4724^2 .

It is a super-2 number, since 2×1145102240² = 2622518280106035200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79946 + ... + 93174.

Almost surely, 2^1145102240 is an apocalyptic number.

1145102240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1145102240 is an abundant number, since it is smaller than the sum of its proper divisors (1565407240).

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

1145102240 is a wasteful number, since it uses less digits than its factorization.

1145102240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13785 (or 13777 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1145102240 is about 33839.3593319968. The cubic root of 1145102240 is about 1046.2000940649.

Adding to 1145102240 its reverse (422015411), we get a palindrome (1567117651).

The spelling of 1145102240 in words is "one billion, one hundred forty-five million, one hundred two thousand, two hundred forty".