2151245430 has 48 divisors (see below), whose sum is σ = 5836428000. Its totient is φ = 548722944.

The previous prime is 2151245419. The next prime is 2151245431. The reversal of 2151245430 is 345421512.

2151245430 is a `hidden beast` number, since 215 + 12 + 4 + 5 + 430 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2151245394 and 2151245403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151245431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 517555 + ... + 521694.

It is an arithmetic number, because the mean of its divisors is an integer number (121592250).

Almost surely, 2^2151245430 is an apocalyptic number.

2151245430 is an abundant number, since it is smaller than the sum of its proper divisors (3685182570).

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

2151245430 is a wasteful number, since it uses less digits than its factorization.

2151245430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039285 (or 1039282 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 2151245430 is about 46381.5203502429. The cubic root of 2151245430 is about 1290.9120465644.

Adding to 2151245430 its reverse (345421512), we get a palindrome (2496666942).

The spelling of 2151245430 in words is "two billion, one hundred fifty-one million, two hundred forty-five thousand, four hundred thirty".