1151496720 has 120 divisors (see below), whose sum is σ = 4218694272. Its totient is φ = 279148800.

The previous prime is 1151496677. The next prime is 1151496727. The reversal of 1151496720 is 276941511.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151496727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64776 + ... + 80615.

Almost surely, 2^1151496720 is an apocalyptic number.

1151496720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1151496720 is an abundant number, since it is smaller than the sum of its proper divisors (3067197552).

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

1151496720 is a wasteful number, since it uses less digits than its factorization.

1151496720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145421 (or 145412 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 1151496720 is about 33933.7106724272. The cubic root of 1151496720 is about 1048.1438772611.

The spelling of 1151496720 in words is "one billion, one hundred fifty-one million, four hundred ninety-six thousand, seven hundred twenty".