1151438457 has 16 divisors (see below), whose sum is σ = 1655591168. Its totient is φ = 707616000.

The previous prime is 1151438419. The next prime is 1151438503. The reversal of 1151438457 is 7548341511.

It is not a de Polignac number, because 1151438457 - 2⁸ = 1151438201 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151428457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9633 + ... + 48945.

It is an arithmetic number, because the mean of its divisors is an integer number (103474448).

Almost surely, 2^1151438457 is an apocalyptic number.

It is an amenable number.

1151438457 is a deficient number, since it is larger than the sum of its proper divisors (504152711).

1151438457 is a wasteful number, since it uses less digits than its factorization.

1151438457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40080.

The product of its digits is 67200, while the sum is 39.

The square root of 1151438457 is about 33932.8521789725. The cubic root of 1151438457 is about 1048.1261990991.

Adding to 1151438457 its reverse (7548341511), we get a palindrome (8699779968).

The spelling of 1151438457 in words is "one billion, one hundred fifty-one million, four hundred thirty-eight thousand, four hundred fifty-seven".