153940274 has 16 divisors (see below), whose sum is σ = 234767160. Its totient is φ = 75694080.

The previous prime is 153940273. The next prime is 153940309. The reversal of 153940274 is 472049351.

It can be written as a sum of positive squares in 4 ways, for example, as 112890625 + 41049649 = 10625^2 + 6407^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (153940273) by changing a digit.

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, 32114 + ... + 36594.

Almost surely, 2^153940274 is an apocalyptic number.

153940274 is a deficient number, since it is larger than the sum of its proper divisors (80826886).

153940274 is a wasteful number, since it uses less digits than its factorization.

153940274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4765.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 153940274 is about 12407.2669835061. The cubic root of 153940274 is about 535.9415382328.

The spelling of 153940274 in words is "one hundred fifty-three million, nine hundred forty thousand, two hundred seventy-four".