154802949 has 32 divisors (see below), whose sum is σ = 249323520. Its totient is φ = 83521152.

The previous prime is 154802941. The next prime is 154802953. The reversal of 154802949 is 949208451.

It is not a de Polignac number, because 154802949 - 2³ = 154802941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 154802949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154802941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36129 + ... + 40185.

It is an arithmetic number, because the mean of its divisors is an integer number (7791360).

Almost surely, 2^154802949 is an apocalyptic number.

It is an amenable number.

154802949 is a deficient number, since it is larger than the sum of its proper divisors (94520571).

154802949 is a wasteful number, since it uses less digits than its factorization.

154802949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4169.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 154802949 is about 12441.9833226058. The cubic root of 154802949 is about 536.9408054209.

The spelling of 154802949 in words is "one hundred fifty-four million, eight hundred two thousand, nine hundred forty-nine".