147274399 has 4 divisors (see below), whose sum is σ = 147777336. Its totient is φ = 146771464.

The previous prime is 147274367. The next prime is 147274409. The reversal of 147274399 is 993472741.

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

It is a cyclic number.

It is not a de Polignac number, because 147274399 - 2⁵ = 147274367 is a prime.

It is a super-2 number, since 2×147274399² = 43379497201622402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147274199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251029 + ... + 251614.

It is an arithmetic number, because the mean of its divisors is an integer number (36944334).

Almost surely, 2^147274399 is an apocalyptic number.

147274399 is a deficient number, since it is larger than the sum of its proper divisors (502937).

147274399 is an equidigital number, since it uses as much as digits as its factorization.

147274399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502936.

The product of its digits is 381024, while the sum is 46.

The square root of 147274399 is about 12135.6664011500. Note that the first 3 decimals coincide. The cubic root of 147274399 is about 528.0913894743.

The spelling of 147274399 in words is "one hundred forty-seven million, two hundred seventy-four thousand, three hundred ninety-nine".