1151451749 has 32 divisors (see below), whose sum is σ = 1379379456. Its totient is φ = 940769280.

The previous prime is 1151451727. The next prime is 1151451761. The reversal of 1151451749 is 9471541511.

It is a cyclic number.

It is not a de Polignac number, because 1151451749 - 2¹² = 1151447653 is a prime.

It is a super-2 number, since 2×1151451749² = 2651682260550318002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151453749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4480229 + ... + 4480485.

It is an arithmetic number, because the mean of its divisors is an integer number (43105608).

Almost surely, 2^1151451749 is an apocalyptic number.

It is an amenable number.

1151451749 is a deficient number, since it is larger than the sum of its proper divisors (227927707).

1151451749 is a wasteful number, since it uses less digits than its factorization.

1151451749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605.

The product of its digits is 25200, while the sum is 38.

The square root of 1151451749 is about 33933.0480358013. The cubic root of 1151451749 is about 1048.1302322108.

The spelling of 1151451749 in words is "one billion, one hundred fifty-one million, four hundred fifty-one thousand, seven hundred forty-nine".