1015420454 has 16 divisors (see below), whose sum is σ = 1534595328. Its totient is φ = 503898312.

The previous prime is 1015420451. The next prime is 1015420463. The reversal of 1015420454 is 4540245101.

It is a super-2 number, since 2×1015420454² = 2062157396803132232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1015420451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260927 + ... + 264789.

It is an arithmetic number, because the mean of its divisors is an integer number (95912208).

Almost surely, 2^1015420454 is an apocalyptic number.

1015420454 is a deficient number, since it is larger than the sum of its proper divisors (519174874).

1015420454 is a wasteful number, since it uses less digits than its factorization.

1015420454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4819.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1015420454 is about 31865.6626166788. The cubic root of 1015420454 is about 1005.1139542246.

Adding to 1015420454 its reverse (4540245101), we get a palindrome (5555665555).

The spelling of 1015420454 in words is "one billion, fifteen million, four hundred twenty thousand, four hundred fifty-four".