155251452 has 12 divisors (see below), whose sum is σ = 362253416. Its totient is φ = 51750480.

The previous prime is 155251433. The next prime is 155251487. The reversal of 155251452 is 254152551.

155251452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 6468799 + ... + 6468822.

Almost surely, 2^155251452 is an apocalyptic number.

155251452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155251452 is an abundant number, since it is smaller than the sum of its proper divisors (207001964).

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

155251452 is a wasteful number, since it uses less digits than its factorization.

155251452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12937628 (or 12937626 counting only the distinct ones).

The product of its digits is 10000, while the sum is 30.

The square root of 155251452 is about 12459.9940609938. The cubic root of 155251452 is about 537.4588561981.

The spelling of 155251452 in words is "one hundred fifty-five million, two hundred fifty-one thousand, four hundred fifty-two".