1151613651 has 4 divisors (see below), whose sum is σ = 1535484872. Its totient is φ = 767742432.

The previous prime is 1151613647. The next prime is 1151613689. The reversal of 1151613651 is 1563161511.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1151613651 - 2² = 1151613647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151613251) 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, 191935606 + ... + 191935611.

It is an arithmetic number, because the mean of its divisors is an integer number (383871218).

Almost surely, 2^1151613651 is an apocalyptic number.

1151613651 is a deficient number, since it is larger than the sum of its proper divisors (383871221).

1151613651 is an equidigital number, since it uses as much as digits as its factorization.

1151613651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383871220.

The product of its digits is 2700, while the sum is 30.

The square root of 1151613651 is about 33935.4335613971. The cubic root of 1151613651 is about 1048.1793546710.

The spelling of 1151613651 in words is "one billion, one hundred fifty-one million, six hundred thirteen thousand, six hundred fifty-one".