148397831 has 8 divisors (see below), whose sum is σ = 152680944. Its totient is φ = 144175680.

The previous prime is 148397801. The next prime is 148397833. The reversal of 148397831 is 138793841.

148397831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148397831 is a prime.

It is a super-2 number, since 2×148397831² = 44043832491009122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148397833) 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, 10280 + ... + 20061.

It is an arithmetic number, because the mean of its divisors is an integer number (19085118).

Almost surely, 2^148397831 is an apocalyptic number.

148397831 is a deficient number, since it is larger than the sum of its proper divisors (4283113).

148397831 is an equidigital number, since it uses as much as digits as its factorization.

148397831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30481.

The product of its digits is 145152, while the sum is 44.

The square root of 148397831 is about 12181.8648408197. The cubic root of 148397831 is about 529.4307772652.

The spelling of 148397831 in words is "one hundred forty-eight million, three hundred ninety-seven thousand, eight hundred thirty-one".