146949819 has 16 divisors (see below), whose sum is σ = 218378880. Its totient is φ = 87350400.

The previous prime is 146949811. The next prime is 146949821. The reversal of 146949819 is 918949641.

It is not a de Polignac number, because 146949819 - 2³ = 146949811 is a prime.

It is a super-2 number, since 2×146949819² = 43188498608265522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (146949811) 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 15 ways as a sum of consecutive naturals, for example, 74857 + ... + 76794.

It is an arithmetic number, because the mean of its divisors is an integer number (13648680).

Almost surely, 2^146949819 is an apocalyptic number.

146949819 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

146949819 is a deficient number, since it is larger than the sum of its proper divisors (71429061).

146949819 is a wasteful number, since it uses less digits than its factorization.

146949819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151690.

The product of its digits is 559872, while the sum is 51.

The square root of 146949819 is about 12122.2860467818. The cubic root of 146949819 is about 527.7031482469.

The spelling of 146949819 in words is "one hundred forty-six million, nine hundred forty-nine thousand, eight hundred nineteen".