15142274 has 48 divisors (see below), whose sum is σ = 28625400. Its totient is φ = 5967360.

The previous prime is 15142273. The next prime is 15142277. The reversal of 15142274 is 47224151.

It can be written as a sum of positive squares in 4 ways, for example, as 7879249 + 7263025 = 2807^2 + 2695^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15142273) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 101552 + ... + 101700.

Almost surely, 2^15142274 is an apocalyptic number.

15142274 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

15142274 is a deficient number, since it is larger than the sum of its proper divisors (13483126).

15142274 is a wasteful number, since it uses less digits than its factorization.

15142274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 236 counting only the distinct ones).

The product of its digits is 2240, while the sum is 26.

The square root of 15142274 is about 3891.3074923475. The cubic root of 15142274 is about 247.3984836876.

The spelling of 15142274 in words is "fifteen million, one hundred forty-two thousand, two hundred seventy-four".