146194406 has 4 divisors (see below), whose sum is σ = 219291612. Its totient is φ = 73097202.

The previous prime is 146194387. The next prime is 146194429. The reversal of 146194406 is 604491641.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 604491641 = 13 ⋅46499357.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36548600 + ... + 36548603.

It is an arithmetic number, because the mean of its divisors is an integer number (54822903).

Almost surely, 2^146194406 is an apocalyptic number.

146194406 is a deficient number, since it is larger than the sum of its proper divisors (73097206).

146194406 is an equidigital number, since it uses as much as digits as its factorization.

146194406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73097205.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 146194406 is about 12091.0878749598. The cubic root of 146194406 is about 526.7973541162.

The spelling of 146194406 in words is "one hundred forty-six million, one hundred ninety-four thousand, four hundred six".