155452451 has 36 divisors (see below), whose sum is σ = 201230064. Its totient is φ = 119639520.

The previous prime is 155452399. The next prime is 155452463. The reversal of 155452451 is 154254551.

It is not a de Polignac number, because 155452451 - 2⁶ = 155452387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155452051) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 930770 + ... + 930936.

It is an arithmetic number, because the mean of its divisors is an integer number (5589724).

Almost surely, 2^155452451 is an apocalyptic number.

155452451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

155452451 is a deficient number, since it is larger than the sum of its proper divisors (45777613).

155452451 is a wasteful number, since it uses less digits than its factorization.

155452451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 342 counting only the distinct ones).

The product of its digits is 20000, while the sum is 32.

The square root of 155452451 is about 12468.0572263685. The cubic root of 155452451 is about 537.6906996673.

The spelling of 155452451 in words is "one hundred fifty-five million, four hundred fifty-two thousand, four hundred fifty-one".