1152061631 has 4 divisors (see below), whose sum is σ = 1316641872. Its totient is φ = 987481392.

The previous prime is 1152061619. The next prime is 1152061639. The reversal of 1152061631 is 1361602511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1361602511 = 1861 ⋅731651.

It is a cyclic number.

It is not a de Polignac number, because 1152061631 - 2⁶ = 1152061567 is a prime.

It is a super-2 number, since 2×1152061631² = 2654492003244760322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1152061631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152061639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82290110 + ... + 82290123.

It is an arithmetic number, because the mean of its divisors is an integer number (329160468).

Almost surely, 2^1152061631 is an apocalyptic number.

1152061631 is a deficient number, since it is larger than the sum of its proper divisors (164580241).

1152061631 is an equidigital number, since it uses as much as digits as its factorization.

1152061631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164580240.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1152061631 is about 33942.0333951872. The cubic root of 1152061631 is about 1048.3152516688.

The spelling of 1152061631 in words is "one billion, one hundred fifty-two million, sixty-one thousand, six hundred thirty-one".