1154091951 has 12 divisors (see below), whose sum is σ = 1691903512. Its totient is φ = 757910736.

The previous prime is 1154091949. The next prime is 1154091959. The reversal of 1154091951 is 1591904511.

It is not a de Polignac number, because 1154091951 - 2¹ = 1154091949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154091959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 956356 + ... + 957561.

Almost surely, 2^1154091951 is an apocalyptic number.

1154091951 is a deficient number, since it is larger than the sum of its proper divisors (537811561).

1154091951 is a wasteful number, since it uses less digits than its factorization.

1154091951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1913990 (or 1913987 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 36.

The square root of 1154091951 is about 33971.9288678167. The cubic root of 1154091951 is about 1048.9307182548.

The spelling of 1154091951 in words is "one billion, one hundred fifty-four million, ninety-one thousand, nine hundred fifty-one".