2123015494 has 8 divisors (see below), whose sum is σ = 3184773768. Its totient is φ = 1061424240.

The previous prime is 2123015473. The next prime is 2123015497. The reversal of 2123015494 is 4945103212.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123015497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2652 + ... + 65215.

It is an arithmetic number, because the mean of its divisors is an integer number (398096721).

Almost surely, 2^2123015494 is an apocalyptic number.

2123015494 is a deficient number, since it is larger than the sum of its proper divisors (1061758274).

2123015494 is a wasteful number, since it uses less digits than its factorization.

2123015494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83510.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 2123015494 is about 46076.1922688931. The cubic root of 2123015494 is about 1285.2404570529.

The spelling of 2123015494 in words is "two billion, one hundred twenty-three million, fifteen thousand, four hundred ninety-four".