109154947 has 12 divisors (see below), whose sum is σ = 120322440. Its totient is φ = 98948960.

The previous prime is 109154939. The next prime is 109154951. The reversal of 109154947 is 749451901.

It is not a de Polignac number, because 109154947 - 2³ = 109154939 is a prime.

It is a super-3 number, since 3×109154947³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109154957) 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, 49623 + ... + 51775.

It is an arithmetic number, because the mean of its divisors is an integer number (10026870).

Almost surely, 2^109154947 is an apocalyptic number.

109154947 is a deficient number, since it is larger than the sum of its proper divisors (11167493).

109154947 is a wasteful number, since it uses less digits than its factorization.

109154947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2594 (or 2583 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 109154947 is about 10447.7244890933. The cubic root of 109154947 is about 477.9118594158.

The spelling of 109154947 in words is "one hundred nine million, one hundred fifty-four thousand, nine hundred forty-seven".