148773451 has 4 divisors (see below), whose sum is σ = 153903600. Its totient is φ = 143643304.

The previous prime is 148773413. The next prime is 148773463. The reversal of 148773451 is 154377841.

It is a happy number.

148773451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 148773451 - 2²³ = 140384843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148773481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2565031 + ... + 2565088.

It is an arithmetic number, because the mean of its divisors is an integer number (38475900).

Almost surely, 2^148773451 is an apocalyptic number.

148773451 is a deficient number, since it is larger than the sum of its proper divisors (5130149).

148773451 is an equidigital number, since it uses as much as digits as its factorization.

148773451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5130148.

The product of its digits is 94080, while the sum is 40.

The square root of 148773451 is about 12197.2722770298. The cubic root of 148773451 is about 529.8770938453.

The spelling of 148773451 in words is "one hundred forty-eight million, seven hundred seventy-three thousand, four hundred fifty-one".