148157409 has 8 divisors (see below), whose sum is σ = 198429952. Its totient is φ = 98328240.

The previous prime is 148157393. The next prime is 148157413. The reversal of 148157409 is 904751841.

148157409 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 not a de Polignac number, because 148157409 - 2⁴ = 148157393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148157309) 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, 110062 + ... + 111399.

It is an arithmetic number, because the mean of its divisors is an integer number (24803744).

Almost surely, 2^148157409 is an apocalyptic number.

It is an amenable number.

148157409 is a deficient number, since it is larger than the sum of its proper divisors (50272543).

148157409 is a wasteful number, since it uses less digits than its factorization.

148157409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221687.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 148157409 is about 12171.9928113682. The cubic root of 148157409 is about 529.1447092741.

The spelling of 148157409 in words is "one hundred forty-eight million, one hundred fifty-seven thousand, four hundred nine".