2153149340 has 12 divisors (see below), whose sum is σ = 4521613656. Its totient is φ = 861259728.

The previous prime is 2153149333. The next prime is 2153149343. The reversal of 2153149340 is 439413512.

It is a junction number, because it is equal to n+sod(n) for n = 2153149297 and 2153149306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153149343) 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, 53828714 + ... + 53828753.

It is an arithmetic number, because the mean of its divisors is an integer number (376801138).

Almost surely, 2^2153149340 is an apocalyptic number.

2153149340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2153149340 is an abundant number, since it is smaller than the sum of its proper divisors (2368464316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2153149340 is a wasteful number, since it uses less digits than its factorization.

2153149340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107657476 (or 107657474 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 2153149340 is about 46402.0402568680. The cubic root of 2153149340 is about 1291.2927648852.

The spelling of 2153149340 in words is "two billion, one hundred fifty-three million, one hundred forty-nine thousand, three hundred forty".