1492312145 has 4 divisors (see below), whose sum is σ = 1790774580. Its totient is φ = 1193849712.

The previous prime is 1492312123. The next prime is 1492312249. The reversal of 1492312145 is 5412132941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5412132941 = 22037 ⋅245593.

It can be written as a sum of positive squares in 2 ways, for example, as 831976336 + 660335809 = 28844^2 + 25697^2 .

It is a cyclic number.

It is not a de Polignac number, because 1492312145 - 2¹² = 1492308049 is a prime.

It is a super-2 number, since 2×1492312145² = 4453991076229002050, which contains 22 as substring.

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, 149231210 + ... + 149231219.

It is an arithmetic number, because the mean of its divisors is an integer number (447693645).

Almost surely, 2^1492312145 is an apocalyptic number.

It is an amenable number.

1492312145 is a deficient number, since it is larger than the sum of its proper divisors (298462435).

1492312145 is an equidigital number, since it uses as much as digits as its factorization.

1492312145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298462434.

The product of its digits is 8640, while the sum is 32.

The square root of 1492312145 is about 38630.4561842078. The cubic root of 1492312145 is about 1142.7552481589.

The spelling of 1492312145 in words is "one billion, four hundred ninety-two million, three hundred twelve thousand, one hundred forty-five".