152820254 has 4 divisors (see below), whose sum is σ = 229230384. Its totient is φ = 76410126.

The previous prime is 152820229. The next prime is 152820271. The reversal of 152820254 is 452028251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 452028251 = 1237 ⋅365423.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38205062 + ... + 38205065.

It is an arithmetic number, because the mean of its divisors is an integer number (57307596).

Almost surely, 2^152820254 is an apocalyptic number.

152820254 is a deficient number, since it is larger than the sum of its proper divisors (76410130).

152820254 is an equidigital number, since it uses as much as digits as its factorization.

152820254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76410129.

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 152820254 is about 12362.0489402040. The cubic root of 152820254 is about 534.6385936598.

The spelling of 152820254 in words is "one hundred fifty-two million, eight hundred twenty thousand, two hundred fifty-four".