1154464081 has 4 divisors (see below), whose sum is σ = 1156392000. Its totient is φ = 1152536164.

The previous prime is 1154464079. The next prime is 1154464127. The reversal of 1154464081 is 1804644511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1804644511 = 43 ⋅41968477.

It is a cyclic number.

It is not a de Polignac number, because 1154464081 - 2¹ = 1154464079 is a prime.

It is a super-2 number, since 2×1154464081² = 2665574628638349122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1154464021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 963061 + ... + 964258.

It is an arithmetic number, because the mean of its divisors is an integer number (289098000).

Almost surely, 2^1154464081 is an apocalyptic number.

It is an amenable number.

1154464081 is a deficient number, since it is larger than the sum of its proper divisors (1927919).

1154464081 is an equidigital number, since it uses as much as digits as its factorization.

1154464081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1927918.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 1154464081 is about 33977.4054483270. The cubic root of 1154464081 is about 1049.0434466040.

It can be divided in two parts, 11544 and 64081, that added together give a square (75625 = 275²).

The spelling of 1154464081 in words is "one billion, one hundred fifty-four million, four hundred sixty-four thousand, eighty-one".