401148247 has 8 divisors (see below), whose sum is σ = 410769920. Its totient is φ = 391539960.

The previous prime is 401148217. The next prime is 401148317. The reversal of 401148247 is 742841104.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 401148247 - 2¹¹ = 401146199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401148217) 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, 84154 + ... + 88792.

It is an arithmetic number, because the mean of its divisors is an integer number (51346240).

Almost surely, 2^401148247 is an apocalyptic number.

401148247 is a deficient number, since it is larger than the sum of its proper divisors (9621673).

401148247 is a wasteful number, since it uses less digits than its factorization.

401148247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6693.

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 401148247 is about 20028.6856034039. The cubic root of 401148247 is about 737.5106558644.

The spelling of 401148247 in words is "four hundred one million, one hundred forty-eight thousand, two hundred forty-seven".