1421763154 has 16 divisors (see below), whose sum is σ = 2448864576. Its totient is φ = 606438000.

The previous prime is 1421763139. The next prime is 1421763157. The reversal of 1421763154 is 4513671241.

It is not an unprimeable number, because it can be changed into a prime (1421763157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237697 + ... + 243604.

It is an arithmetic number, because the mean of its divisors is an integer number (153054036).

Almost surely, 2^1421763154 is an apocalyptic number.

1421763154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1421763154 is a deficient number, since it is larger than the sum of its proper divisors (1027101422).

1421763154 is a wasteful number, since it uses less digits than its factorization.

1421763154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481521.

The product of its digits is 20160, while the sum is 34.

The square root of 1421763154 is about 37706.2747298112. The cubic root of 1421763154 is about 1124.4558761936.

The spelling of 1421763154 in words is "one billion, four hundred twenty-one million, seven hundred sixty-three thousand, one hundred fifty-four".