1151656023 has 16 divisors (see below), whose sum is σ = 1831205376. Its totient is φ = 629476320.

The previous prime is 1151656019. The next prime is 1151656061. The reversal of 1151656023 is 3206561511.

It is not a de Polignac number, because 1151656023 - 2² = 1151656019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151656003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1191708 + ... + 1192673.

It is an arithmetic number, because the mean of its divisors is an integer number (114450336).

Almost surely, 2^1151656023 is an apocalyptic number.

1151656023 is a deficient number, since it is larger than the sum of its proper divisors (679549353).

1151656023 is a wasteful number, since it uses less digits than its factorization.

1151656023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2384414.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1151656023 is about 33936.0578588616. The cubic root of 1151656023 is about 1048.1922099403.

The spelling of 1151656023 in words is "one billion, one hundred fifty-one million, six hundred fifty-six thousand, twenty-three".