155077144 has 16 divisors (see below), whose sum is σ = 291112920. Its totient is φ = 77447040.

The previous prime is 155077081. The next prime is 155077147. The reversal of 155077144 is 441770551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155077147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3954 + ... + 18049.

Almost surely, 2^155077144 is an apocalyptic number.

It is an amenable number.

155077144 is a deficient number, since it is larger than the sum of its proper divisors (136035776).

155077144 is a wasteful number, since it uses less digits than its factorization.

155077144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22890 (or 22886 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 34.

The square root of 155077144 is about 12452.9973901868. The cubic root of 155077144 is about 537.2576375516.

The spelling of 155077144 in words is "one hundred fifty-five million, seventy-seven thousand, one hundred forty-four".