146201497 has 4 divisors (see below), whose sum is σ = 157447780. Its totient is φ = 134955216.

The previous prime is 146201491. The next prime is 146201509. The reversal of 146201497 is 794102641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 794102641 = 113 ⋅7027457.

It can be written as a sum of positive squares in 2 ways, for example, as 22458121 + 123743376 = 4739^2 + 11124^2 .

It is a cyclic number.

It is not a de Polignac number, because 146201497 - 2⁷ = 146201369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146201491) 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, 5623122 + ... + 5623147.

It is an arithmetic number, because the mean of its divisors is an integer number (39361945).

Almost surely, 2^146201497 is an apocalyptic number.

It is an amenable number.

146201497 is a deficient number, since it is larger than the sum of its proper divisors (11246283).

146201497 is a wasteful number, since it uses less digits than its factorization.

146201497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11246282.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 146201497 is about 12091.3811039103. The cubic root of 146201497 is about 526.8058712219.

The spelling of 146201497 in words is "one hundred forty-six million, two hundred one thousand, four hundred ninety-seven".