155981452 has 24 divisors (see below), whose sum is σ = 298100880. Its totient is φ = 70824960.

The previous prime is 155981437. The next prime is 155981473. The reversal of 155981452 is 254189551.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73624 + ... + 75712.

It is an arithmetic number, because the mean of its divisors is an integer number (12420870).

Almost surely, 2^155981452 is an apocalyptic number.

It is an amenable number.

155981452 is a deficient number, since it is larger than the sum of its proper divisors (142119428).

155981452 is a wasteful number, since it uses less digits than its factorization.

155981452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801 (or 3799 counting only the distinct ones).

The product of its digits is 72000, while the sum is 40.

The square root of 155981452 is about 12489.2534604755. The cubic root of 155981452 is about 538.2999253572.

The spelling of 155981452 in words is "one hundred fifty-five million, nine hundred eighty-one thousand, four hundred fifty-two".