1402215451 has 8 divisors (see below), whose sum is σ = 1725803744. Its totient is φ = 1109445120.

The previous prime is 1402215443. The next prime is 1402215461. The reversal of 1402215451 is 1545122041.

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

It is not a de Polignac number, because 1402215451 - 2³ = 1402215443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1402215431) 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, 7704390 + ... + 7704571.

It is an arithmetic number, because the mean of its divisors is an integer number (215725468).

Almost surely, 2^1402215451 is an apocalyptic number.

1402215451 is a deficient number, since it is larger than the sum of its proper divisors (323588293).

1402215451 is a wasteful number, since it uses less digits than its factorization.

1402215451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15408981.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1402215451 is about 37446.1673739783. The cubic root of 1402215451 is about 1119.2787264519.

Adding to 1402215451 its reverse (1545122041), we get a palindrome (2947337492).

The spelling of 1402215451 in words is "one billion, four hundred two million, two hundred fifteen thousand, four hundred fifty-one".