1149940154 has 32 divisors (see below), whose sum is σ = 2066895360. Its totient is φ = 473655600.

The previous prime is 1149940153. The next prime is 1149940157. The reversal of 1149940154 is 4510499411.

It is a super-3 number, since 3×1149940154³ (a number of 28 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (38) 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 (38).

It is not an unprimeable number, because it can be changed into a prime (1149940153) 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, 50192 + ... + 69419.

It is an arithmetic number, because the mean of its divisors is an integer number (64590480).

Almost surely, 2^1149940154 is an apocalyptic number.

1149940154 is a deficient number, since it is larger than the sum of its proper divisors (916955206).

1149940154 is a wasteful number, since it uses less digits than its factorization.

1149940154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119666.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 1149940154 is about 33910.7675230155. The cubic root of 1149940154 is about 1047.6713789349.

The spelling of 1149940154 in words is "one billion, one hundred forty-nine million, nine hundred forty thousand, one hundred fifty-four".