1156154496 has 128 divisors (see below), whose sum is σ = 3716357760. Its totient is φ = 310886400.

The previous prime is 1156154471. The next prime is 1156154507. The reversal of 1156154496 is 6944516511.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33046 + ... + 58346.

It is an arithmetic number, because the mean of its divisors is an integer number (29034045).

Almost surely, 2^1156154496 is an apocalyptic number.

1156154496 is a gapful number since it is divisible by the number (16) 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 1156154496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1858178880).

1156154496 is an abundant number, since it is smaller than the sum of its proper divisors (2560203264).

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

1156154496 is a wasteful number, since it uses less digits than its factorization.

1156154496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25342 (or 25330 counting only the distinct ones).

The product of its digits is 129600, while the sum is 42.

The square root of 1156154496 is about 34002.2719240935. The cubic root of 1156154496 is about 1049.5552147880. Note that the first 3 decimals are identical.

The spelling of 1156154496 in words is "one billion, one hundred fifty-six million, one hundred fifty-four thousand, four hundred ninety-six".