1520214494 has 16 divisors (see below), whose sum is σ = 2416227408. Its totient is φ = 714870912.

The previous prime is 1520214461. The next prime is 1520214497. The reversal of 1520214494 is 4944120251.

It is a super-2 number, since 2×1520214494² = 4622104215535352072, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1520214494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520214497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32852 + ... + 64184.

It is an arithmetic number, because the mean of its divisors is an integer number (151014213).

Almost surely, 2^1520214494 is an apocalyptic number.

1520214494 is a deficient number, since it is larger than the sum of its proper divisors (896012914).

1520214494 is a wasteful number, since it uses less digits than its factorization.

1520214494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32779.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1520214494 is about 38989.9281097055. The cubic root of 1520214494 is about 1149.8334967509.

It can be divided in two parts, 1520 and 214494, that multiplied together give a triangular number (326030880 = T₂₅₅₃₅).

The spelling of 1520214494 in words is "one billion, five hundred twenty million, two hundred fourteen thousand, four hundred ninety-four".