154148640 has 48 divisors (see below), whose sum is σ = 485569728. Its totient is φ = 41106176.

The previous prime is 154148627. The next prime is 154148689. The reversal of 154148640 is 46841451.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160092 + ... + 161051.

It is an arithmetic number, because the mean of its divisors is an integer number (10116036).

Almost surely, 2^154148640 is an apocalyptic number.

154148640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154148640 is an abundant number, since it is smaller than the sum of its proper divisors (331421088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154148640 is a wasteful number, since it uses less digits than its factorization.

154148640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321161 (or 321153 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 154148640 is about 12415.6610778484. The cubic root of 154148640 is about 536.1832372696.

The spelling of 154148640 in words is "one hundred fifty-four million, one hundred forty-eight thousand, six hundred forty".