148143391 has 8 divisors (see below), whose sum is σ = 168637824. Its totient is φ = 128820120.

The previous prime is 148143379. The next prime is 148143403. The reversal of 148143391 is 193341841.

It is an interprime number because it is at equal distance from previous prime (148143379) and next prime (148143403).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 148143391 - 2⁷ = 148143263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148143371) 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, 292521 + ... + 293026.

It is an arithmetic number, because the mean of its divisors is an integer number (21079728).

Almost surely, 2^148143391 is an apocalyptic number.

148143391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

148143391 is a deficient number, since it is larger than the sum of its proper divisors (20494433).

148143391 is a wasteful number, since it uses less digits than its factorization.

148143391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585581.

The product of its digits is 10368, while the sum is 34.

The square root of 148143391 is about 12171.4169676336. The cubic root of 148143391 is about 529.1280203023.

The spelling of 148143391 in words is "one hundred forty-eight million, one hundred forty-three thousand, three hundred ninety-one".