1015423492901 has 4 divisors (see below), whose sum is σ = 1015426296204. Its totient is φ = 1015420689600.

The previous prime is 1015423492873. The next prime is 1015423492913. The reversal of 1015423492901 is 1092943245101.

It is a happy number.

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 101458812676 + 913964680225 = 318526^2 + 956015^2 .

It is a cyclic number.

It is not a de Polignac number, because 1015423492901 - 2³⁸ = 740545585957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1015423492801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 760580 + ... + 1615341.

It is an arithmetic number, because the mean of its divisors is an integer number (253856574051).

Almost surely, 2^{1015423492901} is an apocalyptic number.

It is an amenable number.

1015423492901 is a deficient number, since it is larger than the sum of its proper divisors (2803303).

1015423492901 is an equidigital number, since it uses as much as digits as its factorization.

1015423492901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803302.

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 1015423492901 in words is "one trillion, fifteen billion, four hundred twenty-three million, four hundred ninety-two thousand, nine hundred one".