143455494 has 32 divisors (see below), whose sum is σ = 353122560. Its totient is φ = 37834272.

The previous prime is 143455493. The next prime is 143455513. The reversal of 143455494 is 494554341.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143455493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130824 + ... + 131915.

It is an arithmetic number, because the mean of its divisors is an integer number (11035080).

Almost surely, 2^143455494 is an apocalyptic number.

143455494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

143455494 is an abundant number, since it is smaller than the sum of its proper divisors (209667066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143455494 is a wasteful number, since it uses less digits than its factorization.

143455494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262764.

The product of its digits is 172800, while the sum is 39.

The square root of 143455494 is about 11977.2907621048. The cubic root of 143455494 is about 523.4867918752.

The spelling of 143455494 in words is "one hundred forty-three million, four hundred fifty-five thousand, four hundred ninety-four".