155613452 has 12 divisors (see below), whose sum is σ = 273707280. Its totient is φ = 77411376.

The previous prime is 155613421. The next prime is 155613499. The reversal of 155613452 is 254316551.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97952 + ... + 99527.

It is an arithmetic number, because the mean of its divisors is an integer number (22808940).

Almost surely, 2^155613452 is an apocalyptic number.

It is an amenable number.

155613452 is a deficient number, since it is larger than the sum of its proper divisors (118093828).

155613452 is a wasteful number, since it uses less digits than its factorization.

155613452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197680 (or 197678 counting only the distinct ones).

The product of its digits is 18000, while the sum is 32.

The square root of 155613452 is about 12474.5120946673. The cubic root of 155613452 is about 537.8762631001.

The spelling of 155613452 in words is "one hundred fifty-five million, six hundred thirteen thousand, four hundred fifty-two".