153399494 has 4 divisors (see below), whose sum is σ = 230099244. Its totient is φ = 76699746.

The previous prime is 153399487. The next prime is 153399509. The reversal of 153399494 is 494993351.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38349872 + ... + 38349875.

It is an arithmetic number, because the mean of its divisors is an integer number (57524811).

Almost surely, 2^153399494 is an apocalyptic number.

153399494 is a deficient number, since it is larger than the sum of its proper divisors (76699750).

153399494 is an equidigital number, since it uses as much as digits as its factorization.

153399494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76699749.

The product of its digits is 524880, while the sum is 47.

The square root of 153399494 is about 12385.4549371430. The cubic root of 153399494 is about 535.3132285199.

The spelling of 153399494 in words is "one hundred fifty-three million, three hundred ninety-nine thousand, four hundred ninety-four".