155400452 has 24 divisors (see below), whose sum is σ = 283542336. Its totient is φ = 74456928.

The previous prime is 155400437. The next prime is 155400457. The reversal of 155400452 is 254004551.

It is not an unprimeable number, because it can be changed into a prime (155400457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 593 + ... + 17639.

It is an arithmetic number, because the mean of its divisors is an integer number (11814264).

Almost surely, 2^155400452 is an apocalyptic number.

It is an amenable number.

155400452 is a deficient number, since it is larger than the sum of its proper divisors (128141884).

155400452 is a wasteful number, since it uses less digits than its factorization.

155400452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17147 (or 17145 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 155400452 is about 12465.9717631639. The cubic root of 155400452 is about 537.6307402895.

The spelling of 155400452 in words is "one hundred fifty-five million, four hundred thousand, four hundred fifty-two".