148400417 has 4 divisors (see below), whose sum is σ = 161891376. Its totient is φ = 134909460.

The previous prime is 148400407. The next prime is 148400489. The reversal of 148400417 is 714004841.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 714004841 = 11 ⋅64909531.

It is a cyclic number.

It is not a de Polignac number, because 148400417 - 2¹⁰ = 148399393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 148400417.

It is not an unprimeable number, because it can be changed into a prime (148400407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6745463 + ... + 6745484.

It is an arithmetic number, because the mean of its divisors is an integer number (40472844).

Almost surely, 2^148400417 is an apocalyptic number.

It is an amenable number.

148400417 is a deficient number, since it is larger than the sum of its proper divisors (13490959).

148400417 is a wasteful number, since it uses less digits than its factorization.

148400417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13490958.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 148400417 is about 12181.9709817418. The cubic root of 148400417 is about 529.4338525573.

The spelling of 148400417 in words is "one hundred forty-eight million, four hundred thousand, four hundred seventeen".