2147542651 has 8 divisors (see below), whose sum is σ = 2155188464. Its totient is φ = 2139907680.

The previous prime is 2147542627. The next prime is 2147542693. The reversal of 2147542651 is 1562457412.

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

It is a cyclic number.

It is not a de Polignac number, because 2147542651 - 2⁵ = 2147542619 is a prime.

It is a super-2 number, since 2×2147542651² = 9223878875728215602, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2147542651.

It is not an unprimeable number, because it can be changed into a prime (2147542601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647740 + ... + 651046.

It is an arithmetic number, because the mean of its divisors is an integer number (269398558).

Almost surely, 2^2147542651 is an apocalyptic number.

2147542651 is a deficient number, since it is larger than the sum of its proper divisors (7645813).

2147542651 is a wasteful number, since it uses less digits than its factorization.

2147542651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5421.

The product of its digits is 67200, while the sum is 37.

The square root of 2147542651 is about 46341.5866258375. The cubic root of 2147542651 is about 1290.1709708693.

The spelling of 2147542651 in words is "two billion, one hundred forty-seven million, five hundred forty-two thousand, six hundred fifty-one".