2151522314 has 8 divisors (see below), whose sum is σ = 3305997828. Its totient is φ = 1049523040.

The previous prime is 2151522313. The next prime is 2151522319. The reversal of 2151522314 is 4132251512.

It can be written as a sum of positive squares in 2 ways, for example, as 1569506689 + 582015625 = 39617^2 + 24125^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2151522313) 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, 13118957 + ... + 13119120.

Almost surely, 2^2151522314 is an apocalyptic number.

2151522314 is a deficient number, since it is larger than the sum of its proper divisors (1154475514).

2151522314 is a wasteful number, since it uses less digits than its factorization.

2151522314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26238120.

The product of its digits is 2400, while the sum is 26.

The square root of 2151522314 is about 46384.5051067703. The cubic root of 2151522314 is about 1290.9674280583.

Adding to 2151522314 its reverse (4132251512), we get a palindrome (6283773826).

The spelling of 2151522314 in words is "two billion, one hundred fifty-one million, five hundred twenty-two thousand, three hundred fourteen".