1402630051 has 2 divisors, whose sum is σ = 1402630052. Its totient is φ = 1402630050.

The previous prime is 1402630013. The next prime is 1402630081. The reversal of 1402630051 is 1500362041.

It is a strong prime.

It is an emirp because it is prime and its reverse (1500362041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1402630051 is a prime.

It is not a weakly prime, because it can be changed into another prime (1402630081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701315025 + 701315026.

It is an arithmetic number, because the mean of its divisors is an integer number (701315026).

Almost surely, 2^1402630051 is an apocalyptic number.

1402630051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1402630051 is an equidigital number, since it uses as much as digits as its factorization.

1402630051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1402630051 is about 37451.7029118837. The cubic root of 1402630051 is about 1119.3890298129.

Adding to 1402630051 its reverse (1500362041), we get a palindrome (2902992092).

The spelling of 1402630051 in words is "one billion, four hundred two million, six hundred thirty thousand, fifty-one".