1151399952 has 60 divisors (see below), whose sum is σ = 3239268864. Its totient is φ = 381781440.

The previous prime is 1151399939. The next prime is 1151399959. The reversal of 1151399952 is 2599931511.

It is a junction number, because it is equal to n+sod(n) for n = 1151399898 and 1151399907.

It is not an unprimeable number, because it can be changed into a prime (1151399959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6573 + ... + 48435.

Almost surely, 2^1151399952 is an apocalyptic number.

1151399952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1151399952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1619634432).

1151399952 is an abundant number, since it is smaller than the sum of its proper divisors (2087868912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1151399952 is a wasteful number, since it uses less digits than its factorization.

1151399952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42068 (or 42059 counting only the distinct ones).

The product of its digits is 109350, while the sum is 45.

The square root of 1151399952 is about 33932.2848037087. The cubic root of 1151399952 is about 1048.1145155830.

The spelling of 1151399952 in words is "one billion, one hundred fifty-one million, three hundred ninety-nine thousand, nine hundred fifty-two".