155977248 has 48 divisors (see below), whose sum is σ = 467933760. Its totient is φ = 44564736.

The previous prime is 155977219. The next prime is 155977253. The reversal of 155977248 is 842779551.

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

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 155977197 and 155977206.

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, 115383 + ... + 116726.

It is an arithmetic number, because the mean of its divisors is an integer number (9748620).

Almost surely, 2^155977248 is an apocalyptic number.

It is an amenable number.

155977248 is an abundant number, since it is smaller than the sum of its proper divisors (311956512).

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

155977248 is a wasteful number, since it uses less digits than its factorization.

155977248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232129 (or 232121 counting only the distinct ones).

The product of its digits is 705600, while the sum is 48.

The square root of 155977248 is about 12489.0851546460. The cubic root of 155977248 is about 538.2950892412.

The spelling of 155977248 in words is "one hundred fifty-five million, nine hundred seventy-seven thousand, two hundred forty-eight".