155430452 has 24 divisors (see below), whose sum is σ = 275692032. Its totient is φ = 76668800.

The previous prime is 155430449. The next prime is 155430463. The reversal of 155430452 is 254034551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99308 + ... + 100860.

It is an arithmetic number, because the mean of its divisors is an integer number (11487168).

Almost surely, 2^155430452 is an apocalyptic number.

It is an amenable number.

155430452 is a deficient number, since it is larger than the sum of its proper divisors (120261580).

155430452 is a wasteful number, since it uses less digits than its factorization.

155430452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879 (or 1877 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 155430452 is about 12467.1749807244. The cubic root of 155430452 is about 537.6653345355.

The spelling of 155430452 in words is "one hundred fifty-five million, four hundred thirty thousand, four hundred fifty-two".