1651162402 has 4 divisors (see below), whose sum is σ = 2476743606. Its totient is φ = 825581200.

The previous prime is 1651162379. The next prime is 1651162483. The reversal of 1651162402 is 2042611561.

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

It can be written as a sum of positive squares in only one way, i.e., 1600880121 + 50282281 = 40011^2 + 7091^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412790599 + ... + 412790602.

Almost surely, 2^1651162402 is an apocalyptic number.

1651162402 is a deficient number, since it is larger than the sum of its proper divisors (825581204).

1651162402 is an equidigital number, since it uses as much as digits as its factorization.

1651162402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825581203.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1651162402 is about 40634.4976836185. The cubic root of 1651162402 is about 1181.9431743471.

Adding to 1651162402 its reverse (2042611561), we get a palindrome (3693773963).

The spelling of 1651162402 in words is "one billion, six hundred fifty-one million, one hundred sixty-two thousand, four hundred two".