1460172421 has 4 divisors (see below), whose sum is σ = 1461373452. Its totient is φ = 1458971392.

The previous prime is 1460172409. The next prime is 1460172463. The reversal of 1460172421 is 1242710641.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 143280900 + 1316891521 = 11970^2 + 36289^2 .

It is a cyclic number.

It is not a de Polignac number, because 1460172421 - 2¹¹ = 1460170373 is a prime.

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 1460172421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1460172481) 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, 598690 + ... + 601123.

It is an arithmetic number, because the mean of its divisors is an integer number (365343363).

Almost surely, 2^1460172421 is an apocalyptic number.

It is an amenable number.

1460172421 is a deficient number, since it is larger than the sum of its proper divisors (1201031).

1460172421 is a wasteful number, since it uses less digits than its factorization.

1460172421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201030.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 1460172421 is about 38212.2025143801. The cubic root of 1460172421 is about 1134.4918503899.

The spelling of 1460172421 in words is "one billion, four hundred sixty million, one hundred seventy-two thousand, four hundred twenty-one".