1002149501 has 2 divisors, whose sum is σ = 1002149502. Its totient is φ = 1002149500.

The previous prime is 1002149461. The next prime is 1002149539. The reversal of 1002149501 is 1059412001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1000456900 + 1692601 = 31630^2 + 1301^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002149501 - 2²⁶ = 935040637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002149801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501074750 + 501074751.

It is an arithmetic number, because the mean of its divisors is an integer number (501074751).

Almost surely, 2^1002149501 is an apocalyptic number.

It is an amenable number.

1002149501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002149501 is an equidigital number, since it uses as much as digits as its factorization.

1002149501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 1002149501 is about 31656.7449526953. The cubic root of 1002149501 is about 1000.7159875728.

The spelling of 1002149501 in words is "one billion, two million, one hundred forty-nine thousand, five hundred one".