1145310492 has 12 divisors (see below), whose sum is σ = 2672391176. Its totient is φ = 381770160.

The previous prime is 1145310487. The next prime is 1145310533. The reversal of 1145310492 is 2940135411.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1145310492² = 2623472246170564128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47721259 + ... + 47721282.

Almost surely, 2^1145310492 is an apocalyptic number.

1145310492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1145310492 is an abundant number, since it is smaller than the sum of its proper divisors (1527080684).

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

1145310492 is a wasteful number, since it uses less digits than its factorization.

1145310492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95442548 (or 95442546 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1145310492 is about 33842.4362598203. The cubic root of 1145310492 is about 1046.2635119992.

It can be divided in two parts, 11453 and 10492, that added together give a triangular number (21945 = T₂₀₉).

The spelling of 1145310492 in words is "one billion, one hundred forty-five million, three hundred ten thousand, four hundred ninety-two".