144017772 has 12 divisors (see below), whose sum is σ = 336041496. Its totient is φ = 48005920.

The previous prime is 144017681. The next prime is 144017791. The reversal of 144017772 is 277710441.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×144017772² = 41482237303687968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6000729 + ... + 6000752.

It is an arithmetic number, because the mean of its divisors is an integer number (28003458).

Almost surely, 2^144017772 is an apocalyptic number.

144017772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

144017772 is an abundant number, since it is smaller than the sum of its proper divisors (192023724).

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

144017772 is a wasteful number, since it uses less digits than its factorization.

144017772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12001488 (or 12001486 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 33.

The square root of 144017772 is about 12000.7404771539. The cubic root of 144017772 is about 524.1698408326.

The spelling of 144017772 in words is "one hundred forty-four million, seventeen thousand, seven hundred seventy-two".