1151652021 has 64 divisors (see below), whose sum is σ = 1776660480. Its totient is φ = 662101440.

The previous prime is 1151651983. The next prime is 1151652023. The reversal of 1151652021 is 1202561511.

It is not a de Polignac number, because 1151652021 - 2⁶ = 1151651957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1151651982 and 1151652000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151652023) 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 63 ways as a sum of consecutive naturals, for example, 10763050 + ... + 10763156.

It is an arithmetic number, because the mean of its divisors is an integer number (27760320).

Almost surely, 2^1151652021 is an apocalyptic number.

It is an amenable number.

1151652021 is a deficient number, since it is larger than the sum of its proper divisors (625008459).

1151652021 is a wasteful number, since it uses less digits than its factorization.

1151652021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 24.

The square root of 1151652021 is about 33935.9988949788. The cubic root of 1151652021 is about 1048.1909957844.

The spelling of 1151652021 in words is "one billion, one hundred fifty-one million, six hundred fifty-two thousand, twenty-one".