1167272451 has 10 divisors (see below), whose sum is σ = 1743703412. Its totient is φ = 778181580.

The previous prime is 1167272423. The next prime is 1167272473. The reversal of 1167272451 is 1542727611.

It is not a de Polignac number, because 1167272451 - 2¹⁸ = 1167010307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1167272851) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7205305 + ... + 7205466.

Almost surely, 2^1167272451 is an apocalyptic number.

1167272451 is a deficient number, since it is larger than the sum of its proper divisors (576430961).

1167272451 is an equidigital number, since it uses as much as digits as its factorization.

1167272451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14410783 (or 14410774 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The square root of 1167272451 is about 34165.3691769897. The cubic root of 1167272451 is about 1052.9087753051.

The spelling of 1167272451 in words is "one billion, one hundred sixty-seven million, two hundred seventy-two thousand, four hundred fifty-one".