1420100815 has 32 divisors (see below), whose sum is σ = 1994803200. Its totient is φ = 950361984.

The previous prime is 1420100807. The next prime is 1420100827. The reversal of 1420100815 is 5180010241.

It is a cyclic number.

It is not a de Polignac number, because 1420100815 - 2³ = 1420100807 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 367222 + ... + 371068.

It is an arithmetic number, because the mean of its divisors is an integer number (62337600).

Almost surely, 2^1420100815 is an apocalyptic number.

1420100815 is a deficient number, since it is larger than the sum of its proper divisors (574702385).

1420100815 is a wasteful number, since it uses less digits than its factorization.

1420100815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4111.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 1420100815 is about 37684.2250152501. The cubic root of 1420100815 is about 1124.0174637826.

It can be divided in two parts, 14201008 and 15, that multiplied together give a triangular number (213015120 = T₂₀₆₄₀).

The spelling of 1420100815 in words is "one billion, four hundred twenty million, one hundred thousand, eight hundred fifteen".