193040901 has 12 divisors (see below), whose sum is σ = 289164512. Its totient is φ = 128693772.

The previous prime is 193040879. The next prime is 193040923. The reversal of 193040901 is 109040391.

It is an interprime number because it is at equal distance from previous prime (193040879) and next prime (193040923).

It is not a de Polignac number, because 193040901 - 2⁷ = 193040773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193040941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 396961 + ... + 397446.

Almost surely, 2^193040901 is an apocalyptic number.

It is an amenable number.

193040901 is a deficient number, since it is larger than the sum of its proper divisors (96123611).

193040901 is an frugal number, since it uses more digits than its factorization.

193040901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794422 (or 794410 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 193040901 is about 13893.9159706686. The cubic root of 193040901 is about 577.9404769027.

The spelling of 193040901 in words is "one hundred ninety-three million, forty thousand, nine hundred one".